Gr12 Mathematics: Term test 2
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Questions and Answers

What is the definition of a point of inflection?

  • A point where the graph opens downwards
  • A point where the gradient of the curve is zero
  • A point where the concavity of the graph changes (correct)
  • A point where the graph opens upwards
  • What is the application of differential calculus in optimisation problems?

  • To sketch the graph of a function
  • To find the derivative of a function
  • To find the maximum or minimum value of a function (correct)
  • To find the integral of a function
  • What is the formula for synthetic division?

  • a(x) = b(x) ⋅ Q(x) + R(x)
  • f'(x) = 0
  • a = b ⋅ q + r
  • q₂ = a₃, q₁ = a₂ + q₂ ⋅ d/c, q₀ = a₁ + q₁ ⋅ d/c, R = a₀ + q₀ ⋅ d/c (correct)
  • What is the role of the remainder theorem in solving cubic equations?

    <p>To find the remainder when divided by cx - d</p> Signup and view all the answers

    What is the condition for a graph to be concave up?

    <p>f''(x) &gt; 0</p> Signup and view all the answers

    What is the method to find the x-intercepts of a cubic polynomial?

    <p>Solve f(x) = 0</p> Signup and view all the answers

    What is the application of differential calculus in rates of change?

    <p>To find the instantaneous rate of change</p> Signup and view all the answers

    What is the formula for long division of polynomials?

    <p>a(x) = b(x) ⋅ Q(x) + R(x)</p> Signup and view all the answers

    What is the method to find the y-intercept of a cubic polynomial?

    <p>Set x = 0 and evaluate f(x)</p> Signup and view all the answers

    What is the condition for a graph to be concave down?

    <p>f''(x) &lt; 0</p> Signup and view all the answers

    What is the remainder when a polynomial p(x) is divided by cx - d?

    <p>$p(d/c)$</p> Signup and view all the answers

    What is the degree of the quotient Q(x) when a polynomial p(x) is divided by a linear polynomial cx - d?

    <p>One less than the degree of p(x)</p> Signup and view all the answers

    What is the condition for cx - d to be a factor of a polynomial p(x)?

    <p>$p(d/c) = 0$</p> Signup and view all the answers

    What is the equation of a circle with centre at the origin and radius r?

    <p>$x^2 + y^2 = r^2$</p> Signup and view all the answers

    How do we find a factor of a cubic polynomial using the factor theorem?

    <p>By trial and error</p> Signup and view all the answers

    What is the general form of a polynomial p(x) when divided by cx - d?

    <p>$p(x) = (cx - d)Q(x) + R$</p> Signup and view all the answers

    What is the next step after finding a factor of a cubic polynomial using the factor theorem?

    <p>Factorize the polynomial by polynomial long division</p> Signup and view all the answers

    What is the purpose of the quadratic formula in solving cubic equations?

    <p>To find the roots of the quadratic polynomial</p> Signup and view all the answers

    What is the relationship between the roots of a polynomial and its factors?

    <p>The roots are the solutions of the polynomial when substituted into the factors</p> Signup and view all the answers

    Why is the factor theorem useful in solving cubic equations?

    <p>It helps in factorizing the polynomial</p> Signup and view all the answers

    What is the limit of the function (y = \frac{x^2 + 4x - 12}{x + 6}) as (x) approaches -6?

    <p>-8</p> Signup and view all the answers

    Which of the following statements accurately describes the concept of limits in the context of Achilles and the tortoise paradox?

    <p>The limit represents the point where the distance between Achilles and the tortoise becomes infinitely small.</p> Signup and view all the answers

    Why is the function (y = \frac{x^2 + 4x - 12}{x + 6}) not defined at (x = -6)?

    <p>Because the denominator becomes zero at (x = -6).</p> Signup and view all the answers

    What does the hole in the graph of (y = \frac{x^2 + 4x - 12}{x + 6}) at (x = -6) represent?

    <p>The point where the function is undefined.</p> Signup and view all the answers

    Which of the following expressions represents the simplified form of the function (y = \frac{x^2 + 4x - 12}{x + 6}) for (x \neq -6)?

    <p>(x - 2)</p> Signup and view all the answers

    How does the concept of limits help in understanding the behavior of a function near a point where it is not defined?

    <p>Limits allow us to understand how the function behaves as it gets closer to the point where it is not defined.</p> Signup and view all the answers

    What is the equation of a circle with center at the origin and radius r?

    <p>x^2 + y^2 = r^2</p> Signup and view all the answers

    A circle with center at the origin is symmetric about which of the following?

    <p>The x-axis and the y-axis</p> Signup and view all the answers

    What is the equation of a circle with center at (a, b) and radius r?

    <p>(x - a)^2 + (y - b)^2 = r^2</p> Signup and view all the answers

    What is the first step to find the equation of a tangent to a circle?

    <p>Write the equation of the circle in standard form</p> Signup and view all the answers

    What is the relationship between the gradients of the radius and tangent?

    <p>m_radius = -1/m_tangent</p> Signup and view all the answers

    What is the last step to find the equation of a tangent to a circle?

    <p>Write down the gradient-point form of the straight line equation</p> Signup and view all the answers

    What is the general form of a circle's equation?

    <p>x^2 + y^2 + Dx + Ey + F = 0</p> Signup and view all the answers

    What is a tangent to a circle?

    <p>A straight line that touches the circle at exactly one point</p> Signup and view all the answers

    What is a ratio?

    <p>A relationship between two quantities with the same units</p> Signup and view all the answers

    What is the purpose of completing the square in finding the equation of a circle?

    <p>To convert the general form to the standard form</p> Signup and view all the answers

    What is the first step in determining the equation of a tangent to a curve?

    <p>Find the derivative using the rules of differentiation.</p> Signup and view all the answers

    What indicates the change in gradient of the original function?

    <p>The second derivative.</p> Signup and view all the answers

    Which of the following describes a local maximum of a function?

    <p>A point where the function changes from increasing to decreasing.</p> Signup and view all the answers

    If the coefficient 'a' in a cubic function is negative, which statement is true?

    <p>The graph will fall to the left and rise to the right.</p> Signup and view all the answers

    How can one find the x-intercepts of a cubic function?

    <p>Set y equal to zero and solve for x.</p> Signup and view all the answers

    What is the relationship between the gradient of the tangent and the normal to a curve?

    <p>Their slopes multiply to -1.</p> Signup and view all the answers

    What is the result of differentiating the function twice?

    <p>It gives the rate of change of the gradient.</p> Signup and view all the answers

    To find stationary points on a graph, which condition must be satisfied?

    <p>The first derivative must be zero.</p> Signup and view all the answers

    Which notation indicates the second derivative of a function?

    <p>f''(x)</p> Signup and view all the answers

    What does the derivative allow us to determine about a function?

    <p>The rate of change at any point.</p> Signup and view all the answers

    What is the primary purpose of simplifying ratios?

    <p>To express ratios in their simplest form</p> Signup and view all the answers

    Which of the following is a property of proportion?

    <p>Cross Multiplication</p> Signup and view all the answers

    What is the name of the theorem that states that if a line is drawn parallel to one side of a triangle, it divides the other two sides proportionally?

    <p>Thales' Theorem</p> Signup and view all the answers

    What is the formula for the area of a triangle?

    <p>Area = 1/2 × base × height</p> Signup and view all the answers

    What is the name of the polygon with four sides of equal length?

    <p>Rhombus</p> Signup and view all the answers

    Which of the following is not a type of polygon?

    <p>Circle</p> Signup and view all the answers

    What is the formula for the area of a trapezium?

    <p>Area = 1/2 × (base1 + base2) × height</p> Signup and view all the answers

    What is the term used to describe the equality of ratios between corresponding sides or other measurements in polygons?

    <p>Proportionality</p> Signup and view all the answers

    Which of the following is a characteristic of similar polygons?

    <p>Corresponding angles are equal</p> Signup and view all the answers

    What is the first step in solving proportional problems?

    <p>Identify the given ratios</p> Signup and view all the answers

    What is the derivative of the function $f(x) = 3x^4$?

    <p>$12x^3$</p> Signup and view all the answers

    Using differentiation from first principles, how is the gradient at a point $x = a$ calculated?

    <p>$rac{f(a+h) - f(a)}{h}$</p> Signup and view all the answers

    What is the derivative of a constant function $f(x) = k$?

    <p>$0$</p> Signup and view all the answers

    What does the notation $rac{dy}{dx}$ represent?

    <p>The slope of the tangent to a curve at a point</p> Signup and view all the answers

    Which of the following notations can be used to represent the derivative of a function?

    <p>$D_xy$</p> Signup and view all the answers

    When should the rules for differentiation be used instead of differentiation from first principles?

    <p>If the question does not specify how to determine the derivative</p> Signup and view all the answers

    What is the derivative of the function $f(x) = x^3 + 4x$?

    <p>$3x^2 + 4$</p> Signup and view all the answers

    What is the gradient at the point $x = -6$ for the function $y = rac{(x + 6)(x - 2)}{x + 6}$?

    <p>$-8$</p> Signup and view all the answers

    Which operation does the differential operator $rac{d}{dx}$ indicate?

    <p>Derivation</p> Signup and view all the answers

    What is the derivative of the function $f(x) = k imes f(x)$, where $k$ is a constant?

    <p>$k imes rac{d}{dx}[f(x)]$</p> Signup and view all the answers

    What is the statement of the Pythagorean theorem?

    <p>The square on the hypotenuse is equal to the sum of the squares on the other two sides.</p> Signup and view all the answers

    What is the condition for two triangles to be similar?

    <p>All pairs of corresponding angles are equal and all pairs of corresponding sides are in the same proportion.</p> Signup and view all the answers

    What is the formula for the area of a triangle?

    <p>Area = (1/2) × base × height</p> Signup and view all the answers

    What is the converse of the Pythagorean theorem?

    <p>If the square of one side of a triangle is equal to the sum of the squares of the other two sides, then the angle included by these two sides is a right angle.</p> Signup and view all the answers

    What is the condition for triangles with equal bases between the same parallel lines?

    <p>They have equal areas.</p> Signup and view all the answers

    What is the similarity condition for polygons?

    <p>All pairs of corresponding angles are equal, and all pairs of corresponding sides are in the same proportion.</p> Signup and view all the answers

    What is the proof of the Pythagorean theorem based on?

    <p>The similarity of triangles ABD and CBA.</p> Signup and view all the answers

    What is the result of adding the two results from the similarity of triangles ABD and CAD?

    <p>AB^2 + AC^2 = BC^2</p> Signup and view all the answers

    If a line is drawn parallel to one side of a triangle, how does it affect the other two sides?

    <p>It divides the other two sides proportionally.</p> Signup and view all the answers

    What is the relationship between two triangles that are equiangular?

    <p>They are similar.</p> Signup and view all the answers

    In a right-angled triangle, how are the squares of the sides related?

    <p>The square of the hypotenuse is equal to the sum of the squares of the other two sides.</p> Signup and view all the answers

    What is the relationship between the areas of two triangles with the same height?

    <p>The areas are proportional to their bases.</p> Signup and view all the answers

    If two triangles have equal bases and lie between the same parallel lines, what can you say about their areas?

    <p>They have the same area.</p> Signup and view all the answers

    If two triangles on the same base have equal areas, what can you conclude about their heights?

    <p>Their heights are equal.</p> Signup and view all the answers

    According to the Proportion Theorem, what is the relationship between the segments created when a line parallel to one side of a triangle intersects the other two sides?

    <p>The segments are proportional to the corresponding sides of the triangle.</p> Signup and view all the answers

    What is the relationship between the line joining the midpoints of two sides of a triangle and the third side of the triangle?

    <p>The line is parallel to the third side and half its length.</p> Signup and view all the answers

    If a line is drawn from the midpoint of one side of a triangle parallel to another side, what can you conclude about the third side?

    <p>The third side is bisected by the line.</p> Signup and view all the answers

    What is the formula for the area of a triangle?

    <p>Area = 1/2 x base x height</p> Signup and view all the answers

    If two triangles have all corresponding angles equal, what can we conclude about the triangles?

    <p>They are always similar.</p> Signup and view all the answers

    In triangle ABC, D and E are midpoints of sides AB and AC respectively. What is the relationship between DE and BC?

    <p>DE is parallel to BC and DE = 1/2 BC</p> Signup and view all the answers

    Triangle ABC is similar to triangle DEF. If AB = 6, BC = 8, and DE = 3, what is the length of EF?

    <p>4</p> Signup and view all the answers

    Two polygons are similar if they have:

    <p>All of the above.</p> Signup and view all the answers

    If two triangles have corresponding sides in the same proportion, what can we conclude about the triangles?

    <p>They are always similar.</p> Signup and view all the answers

    In triangle ABC, D is the midpoint of side AB and E is the midpoint of side AC. If BC = 10 cm, what is the length of DE?

    <p>5 cm</p> Signup and view all the answers

    Which of the following is NOT a condition for two polygons to be similar?

    <p>All corresponding sides are equal.</p> Signup and view all the answers

    Triangle ABC is similar to triangle DEF. If the ratio of the area of triangle ABC to the area of triangle DEF is 4:1, what is the ratio of the corresponding sides?

    <p>2:1</p> Signup and view all the answers

    If two triangles are similar, then which of the following must be true?

    <p>The triangles have the same shape.</p> Signup and view all the answers

    In triangle ABC, D is a point on side AB such that AD = 1/3 AB. E is a point on side AC such that AE = 1/3 AC. What is the relationship between DE and BC?

    <p>DE is parallel to BC and DE = 1/3 BC</p> Signup and view all the answers

    What is the derivative of the function $f(x) = x^2$?

    <p>$2x$</p> Signup and view all the answers

    What is the formula for the gradient of the tangent to a curve with equation $y = f(x)$ at $x = a$?

    <p>$\lim_{h \to 0} \frac{f(a + h) - f(a)}{h}$</p> Signup and view all the answers

    What is the derivative of the function $f(x) = 3x^2 + 2x - 5$?

    <p>$6x + 2$</p> Signup and view all the answers

    What is the notation for the derivative of a function $f(x)$?

    <p>All of the above</p> Signup and view all the answers

    What is the general rule for differentiating $x^n$?

    <p>$nx^{n-1}$</p> Signup and view all the answers

    What is the derivative of the function $f(x) = 2x + 1$?

    <p>$2$</p> Signup and view all the answers

    What is the purpose of differentiating a function?

    <p>To determine the gradient of the function</p> Signup and view all the answers

    What is the derivative of the function $f(x) = k$?

    <p>$0$</p> Signup and view all the answers

    What is the derivative of the function $f(x) = x^2 + 2x - 3$?

    <p>$2x + 2$</p> Signup and view all the answers

    What is the equation of the tangent to a curve with equation $y = f(x)$ at $x = a$?

    <p>$y = f'(a)(x - a) + f(a)$</p> Signup and view all the answers

    Why is the function (y = \frac{x^2 + 4x - 12}{x + 6}) not defined at (x = -6)?

    <p>Because the denominator becomes zero, leading to an undefined result.</p> Signup and view all the answers

    What is the simplified form of the function (y = \frac{x^2 + 4x - 12}{x + 6}) for (x \neq -6)?

    <p>(y = x - 2)</p> Signup and view all the answers

    What does the hole in the graph of (y = \frac{x^2 + 4x - 12}{x + 6}) at (x = -6) represent?

    <p>A point of discontinuity where the function is undefined.</p> Signup and view all the answers

    How does the concept of limits help in understanding the behavior of a function near a point where it is not defined?

    <p>Limits help us understand the behavior of the function as it approaches the undefined point.</p> Signup and view all the answers

    Which of the following statements accurately describes the concept of limits in the context of Achilles and the tortoise paradox?

    <p>The paradox demonstrates that the limit of the distance between Achilles and the tortoise as Achilles gets closer to the tortoise is zero.</p> Signup and view all the answers

    What is the limit of the function (y = \frac{x^2 + 4x - 12}{x + 6}) as (x) approaches -6?

    <p>-8</p> Signup and view all the answers

    What is the remainder when a polynomial p(x) is divided by cx - d?

    <p>p(d/c)</p> Signup and view all the answers

    What is the general form of a polynomial p(x) when divided by cx - d?

    <p>p(x) = (cx - d)Q(x) + R</p> Signup and view all the answers

    What is the next step after finding a factor of a cubic polynomial using the Factor Theorem?

    <p>Divide the cubic polynomial by the factor to get a quadratic polynomial.</p> Signup and view all the answers

    What is the purpose of the Factor Theorem in solving cubic equations?

    <p>To factorize the cubic polynomial into linear factors.</p> Signup and view all the answers

    What is the equation of a circle with center at (a, b) and radius r?

    <p>(x - a)^2 + (y - b)^2 = r</p> Signup and view all the answers

    What is the first step to find the equation of a tangent to a circle?

    <p>Find the point of tangency.</p> Signup and view all the answers

    What is the relationship between the gradients of the radius and tangent?

    <p>They are perpendicular.</p> Signup and view all the answers

    What is the general form of a circle's equation?

    <p>x^2 + y^2 = r^2</p> Signup and view all the answers

    What is the equation of a circle with center at the origin and radius r?

    <p>x^2 + y^2 = r^2</p> Signup and view all the answers

    What is a tangent to a circle?

    <p>A line that intersects the circle at one point.</p> Signup and view all the answers

    What is the relationship between the gradients of the tangent and the normal to a curve at a given point?

    <p>The product of the gradients is equal to -1.</p> Signup and view all the answers

    If the coefficient 'a' in a cubic function is negative, which statement is true?

    <p>The graph falls to the right and rises to the left.</p> Signup and view all the answers

    What is the first step in determining the equation of a tangent to a curve?

    <p>Find the derivative of the function using the rules of differentiation.</p> Signup and view all the answers

    What is the notation used to indicate the second derivative of a function y with respect to x?

    <p>y''</p> Signup and view all the answers

    Which of the following describes a local maximum of a function?

    <p>A point where the function changes from increasing to decreasing.</p> Signup and view all the answers

    What does the derivative allow us to determine about a function?

    <p>The rate of change of the function at a given point.</p> Signup and view all the answers

    To find stationary points on a graph, which condition must be satisfied?

    <p>The first derivative is equal to zero.</p> Signup and view all the answers

    How can one find the x-intercepts of a cubic function?

    <p>Set the function equal to zero and solve for x.</p> Signup and view all the answers

    What is the result of differentiating the function twice?

    <p>The second derivative of the function.</p> Signup and view all the answers

    What indicates the change in gradient of the original function?

    <p>The second derivative of the function.</p> Signup and view all the answers

    What is the condition for two triangles to be similar?

    <p>The corresponding sides are in proportion.</p> Signup and view all the answers

    If a line is drawn parallel to one side of a triangle, what is the effect on the other two sides?

    <p>They are divided proportionally.</p> Signup and view all the answers

    What is the formula for the area of a triangle?

    <p>Area = (1/2) × base × height</p> Signup and view all the answers

    What is the Mid-point Theorem?

    <p>The line joining the midpoints of two sides of a triangle is parallel to the third side and equal to half the length of the third side.</p> Signup and view all the answers

    What can be concluded about two triangles with equal bases and between the same parallel lines?

    <p>They have equal areas.</p> Signup and view all the answers

    What is the relationship between the areas of two triangles with the same height?

    <p>The areas are proportional to their bases.</p> Signup and view all the answers

    What is the conclusion of the Proportion Theorem?

    <p>The corresponding sides of two triangles are in proportion.</p> Signup and view all the answers

    What is the condition for two polygons to be similar?

    <p>All pairs of corresponding angles are equal and all pairs of corresponding sides are in the same proportion</p> Signup and view all the answers

    What is the relationship between the heights of two triangles with equal areas?

    <p>The heights are equal.</p> Signup and view all the answers

    Which theorem states that equiangular triangles are similar?

    <p>Equiangular triangle theorem</p> Signup and view all the answers

    What is the formula for the Proportion Theorem?

    <p>AD/DB = AE/EC</p> Signup and view all the answers

    What can be concluded about two triangles with equal heights and equal areas?

    <p>They have equal bases.</p> Signup and view all the answers

    What is the condition for two triangles to be similar?

    <p>Both conditions b and c must be true</p> Signup and view all the answers

    What is the Mid-point Theorem used for?

    <p>To find the length of a line segment parallel to one side of a triangle and half its length</p> Signup and view all the answers

    If two triangles have corresponding sides in proportion, what can be concluded?

    <p>They are similar</p> Signup and view all the answers

    What is the purpose of the Proportionality Theorem?

    <p>To show that corresponding sides of two triangles are in proportion</p> Signup and view all the answers

    What is the definition of similar polygons?

    <p>Polygons with the same shape but differ in size</p> Signup and view all the answers

    What is the condition for a line to be parallel to one side of a triangle?

    <p>The corresponding angles are equal</p> Signup and view all the answers

    What is the result of constructing a line parallel to one side of a triangle?

    <p>The line divides the other two sides proportionally</p> Signup and view all the answers

    What does it mean if a graph is concave up?

    <p>The second derivative is positive.</p> Signup and view all the answers

    Which method can be used to find turning points of a cubic function?

    <p>Set the derivative equal to zero.</p> Signup and view all the answers

    In which situation would a point be classified as a point of inflection?

    <p>The second derivative changes sign.</p> Signup and view all the answers

    What is the general procedure to sketch a cubic polynomial?

    <p>Consider the shape using the sign of a, find intercepts, turning points, and end behavior.</p> Signup and view all the answers

    What is the result when applying the Remainder Theorem to a polynomial p(x) divided by cx - d?

    <p>The remainder is the value of p at x = d/c.</p> Signup and view all the answers

    How do you determine the y-intercept of a cubic function?

    <p>By evaluating f(0).</p> Signup and view all the answers

    Which statement is true regarding stationary points and turning points?

    <p>A stationary point can indicate a local maximum or minimum.</p> Signup and view all the answers

    Which of the following best describes concave down graphs?

    <p>The second derivative is negative.</p> Signup and view all the answers

    What is the purpose of synthetic division in polynomial division?

    <p>To simplify the coefficients systematically.</p> Signup and view all the answers

    When is a cubic polynomial guaranteed to have a real root?

    <p>Always, due to the Intermediate Value Theorem.</p> Signup and view all the answers

    What relationship is defined by the Pythagorean theorem in a right-angled triangle?

    <p>The square of the hypotenuse equals the sum of the squares of the other two sides.</p> Signup and view all the answers

    What is the equation of a circle with center at ( (3, -2) ) and radius 5?

    <p>( (x - 3)^2 + (y + 2)^2 = 25 )</p> Signup and view all the answers

    What is the center of the circle represented by the equation ( x^2 + y^2 - 6x + 4y - 12 = 0 ) ?

    <p>( (3, -2) )</p> Signup and view all the answers

    Which condition confirms that two triangles are similar?

    <p>All pairs of corresponding angles are equal.</p> Signup and view all the answers

    Which statement is true regarding the areas of triangles with equal bases and heights?

    <p>They can have different perimeters.</p> Signup and view all the answers

    A tangent to a circle intersects the circle at exactly:

    <p>One point</p> Signup and view all the answers

    What is the gradient of the tangent to the circle ( x^2 + y^2 = 25 ) at the point ( (3, 4) ) ?

    <p>( -\frac{4}{3} )</p> Signup and view all the answers

    In the context of triangle similarity, if two triangles are equiangular, what can be said about their sides?

    <p>The corresponding sides are in proportion.</p> Signup and view all the answers

    Which of the following statements about the equation of a circle is TRUE?

    <p>The equation of a circle with center at the origin is always in the form of ( x^2 + y^2 = r^2 ) , where r is the radius.</p> Signup and view all the answers

    What is the area formula for a triangle?

    <p>Area = 1/2 × base × height.</p> Signup and view all the answers

    What is the radius of the circle represented by the equation ( x^2 + y^2 + 8x - 10y + 16 = 0 ) ?

    <p>( 5 )</p> Signup and view all the answers

    Which of the following would make a triangle a right triangle according to the converse of the Pythagorean theorem?

    <p>The square of one side equals the sum of the squares of the other two sides.</p> Signup and view all the answers

    Given the equation of a circle ( (x - 2)^2 + (y + 1)^2 = 9 ) , what is the gradient of the radius drawn to the point ( (5, 2) ) ?

    <p>( \frac{1}{3} )</p> Signup and view all the answers

    How is proportionality in triangles determined if they share equal heights?

    <p>Their areas are proportional to the lengths of their bases.</p> Signup and view all the answers

    What must be proven to establish that two triangles are similar under the conditions provided?

    <p>Either equiangularity or proportionality of sides must be shown.</p> Signup and view all the answers

    A circle with center at the origin is symmetric about:

    <p>The x-axis, the y-axis, and the origin</p> Signup and view all the answers

    What is the equation of the tangent to the circle ( x^2 + y^2 = 16 ) at the point ( (4, 0) ) ?

    <p>( y = 0 )</p> Signup and view all the answers

    Which of the following is NOT a step in finding the equation of a tangent to a circle?

    <p>Find the x-intercept of the tangent.</p> Signup and view all the answers

    What is the primary reason why ratios are considered unit-less?

    <p>They compare quantities of the same kind.</p> Signup and view all the answers

    Which property of proportion involves rearranging two equal ratios to form a new ratio?

    <p>Reciprocal Proportion</p> Signup and view all the answers

    In similar polygons, which statement is true about corresponding angles?

    <p>They are equal.</p> Signup and view all the answers

    What is the area formula for a rectangle defined by length and width?

    <p>Area = length × width</p> Signup and view all the answers

    What theorem states that a line parallel to one side of a triangle divides the other two sides proportionally?

    <p>Basic Proportionality Theorem</p> Signup and view all the answers

    When setting up proportional equations in problems, what is the first step?

    <p>Identify the given ratios.</p> Signup and view all the answers

    Which formula correctly calculates the area of a trapezium?

    <p>Area = 1/2 × (base1 + base2) × height</p> Signup and view all the answers

    Which of the following statements regarding ratios is NOT true?

    <p>Ratios provide actual measurements.</p> Signup and view all the answers

    In polygons, what defines a closed shape?

    <p>Each segment intersects exactly two others.</p> Signup and view all the answers

    What is the area of a rhombus calculated using its diagonals AC and BD?

    <p>Area = 1/2 × diagonal AC × diagonal BD</p> Signup and view all the answers

    What is the significance of the second derivative in determining the concavity of a curve?

    <p>It determines whether the curve is concave up or concave down</p> Signup and view all the answers

    What is the purpose of synthetic division in factorising cubic polynomials?

    <p>To find the factors of the polynomial</p> Signup and view all the answers

    What is the application of differential calculus in optimisation problems?

    <p>To find the maximum or minimum values of a function</p> Signup and view all the answers

    What is the relationship between the gradient of the tangent and the normal to a curve?

    <p>They are perpendicular to each other</p> Signup and view all the answers

    What is the significance of the point of inflection in a curve?

    <p>It is the point where the curve changes concavity</p> Signup and view all the answers

    What is the derivative of the function y = x^3?

    <p>3x^2</p> Signup and view all the answers

    What is the derivative of the function y = (x^2 + 3x - 4) / (x + 2)?

    <p>((x + 1)(x - 2)) / (x + 2)^2</p> Signup and view all the answers

    What is the purpose of long division in polynomial division?

    <p>To find the quotient and remainder</p> Signup and view all the answers

    What is the limit of the function y = (x - 2) / (x + 2) as x approaches -2?

    <p>1</p> Signup and view all the answers

    What is the relationship between the roots of a polynomial and its factors?

    <p>The roots are the solutions to the equation p(x) = 0</p> Signup and view all the answers

    What is the equation of the tangent line to the curve y = x^2 at the point (1, 1)?

    <p>y = 2x - 1</p> Signup and view all the answers

    What is the application of differential calculus in rates of change?

    <p>To find the instantaneous rate of change of a function</p> Signup and view all the answers

    What is the derivative of the function y = (2x + 1) / (x - 1)?

    <p>(-x + 3) / (x - 1)^2</p> Signup and view all the answers

    What is the significance of the remainder theorem in solving cubic equations?

    <p>It is used to find the remainder when dividing a polynomial by a linear polynomial</p> Signup and view all the answers

    What is the relationship between the coefficient 'a' and the graph of a cubic polynomial?

    <p>If a is positive, the graph opens upwards</p> Signup and view all the answers

    What is the definition of the derivative of a function y = f(x)?

    <p>The derivative of a function y = f(x) is the limit of the ratio of the change in y to the change in x as the change in x approaches zero.</p> Signup and view all the answers

    What is the method used to find the derivative of a function y = f(x)?

    <p>Differentiation from first principles</p> Signup and view all the answers

    What is the notation for the derivative of a function y = f(x)?

    <p>All of the above</p> Signup and view all the answers

    What is the purpose of the differential operator D in differentiation?

    <p>To indicate the operation of differentiation</p> Signup and view all the answers

    What is the relationship between the gradient of the tangent and the gradient of the normal to a curve?

    <p>They are perpendicular</p> Signup and view all the answers

    If a polynomial p(x) is divided by cx - d, what is the degree of the quotient Q(x) if cx - d is a linear polynomial?

    <p>One degree less than p(x)</p> Signup and view all the answers

    What does the limit of the function $y = \frac{x^2 + 4x - 12}{x + 6}$ approach as $x$ approaches -6?

    <p>-8</p> Signup and view all the answers

    Which of the following correctly represents the behavior of the function $y = \frac{x^2 + 4x - 12}{x + 6}$ near its point of discontinuity at $x = -6$?

    <p>The function has a removable discontinuity.</p> Signup and view all the answers

    What is the remainder when a polynomial p(x) is divided by cx - d?

    <p>p(d/c)</p> Signup and view all the answers

    In the context of the Achilles and the tortoise paradox, which fundamental principle of calculus is illustrated?

    <p>The concept of limits.</p> Signup and view all the answers

    If the remainder R is zero when a polynomial p(x) is divided by cx - d, what can be concluded?

    <p>cx - d is a factor of p(x)</p> Signup and view all the answers

    What is the purpose of the Factor Theorem in solving cubic equations?

    <p>To find one factor of the cubic polynomial</p> Signup and view all the answers

    What graphical feature is present in the function $y = \frac{x^2 + 4x - 12}{x + 6}$ at $x = -6$?

    <p>A hole in the graph.</p> Signup and view all the answers

    What is the equation of a circle with center at (a, b) and radius r?

    <p>(x - a)^2 + (y - b)^2 = r^2</p> Signup and view all the answers

    What can be concluded about the limit of a function at a point where the function is not defined?

    <p>The limit can exist even if the function is undefined at that point.</p> Signup and view all the answers

    What is the simplified form of the function $y = \frac{x^2 + 4x - 12}{x + 6}$ for $x \neq -6$?

    <p>$y = x - 2$</p> Signup and view all the answers

    If a polynomial p(x) has a root d/c, what can be concluded?

    <p>cx - d is a factor of p(x)</p> Signup and view all the answers

    What is the next step after finding a factor of a cubic polynomial using the Factor Theorem?

    <p>Use polynomial division to find the remaining factors</p> Signup and view all the answers

    What is the purpose of the Quadratic Formula in solving cubic equations?

    <p>To find the roots of the quadratic polynomial</p> Signup and view all the answers

    What is the relationship between the roots of a polynomial and its factors?

    <p>The factors are the roots of the polynomial</p> Signup and view all the answers

    Why is the Factor Theorem useful in solving cubic equations?

    <p>It helps to find one factor of the cubic polynomial</p> Signup and view all the answers

    If the equation of a circle is given by x^2 + y^2 + 4x - 6y + 9 = 0, what are the coordinates of its center?

    <p>(-2, 3)</p> Signup and view all the answers

    What is the gradient of the tangent to the circle x^2 + y^2 = 25 at the point (3, 4)?

    <p>-3/4</p> Signup and view all the answers

    What is the equation of the circle with center at (-1, 2) and radius 4?

    <p>(x + 1)^2 + (y - 2)^2 = 16</p> Signup and view all the answers

    What is the equation of the tangent to the circle x^2 + y^2 = 16 at the point (4, 0)?

    <p>x = 4</p> Signup and view all the answers

    What is the ratio of the circumference of a circle to its diameter?

    <p>pi</p> Signup and view all the answers

    What is the equation of the circle with center at (2, -3) and radius 5?

    <p>(x - 2)^2 + (y + 3)^2 = 25</p> Signup and view all the answers

    What is the relationship between the gradients of the radius and tangent to a circle?

    <p>They are perpendicular</p> Signup and view all the answers

    What is the equation of the circle with center at the origin and radius 3?

    <p>x^2 + y^2 = 9</p> Signup and view all the answers

    What is the purpose of completing the square in finding the equation of a circle?

    <p>To find the equation of the circle in standard form</p> Signup and view all the answers

    What is a tangent to a circle?

    <p>A line that intersects the circle at one point</p> Signup and view all the answers

    If DE is parallel to BC in triangle ABC, what is the relationship between AD, DB, AE, and EC?

    <p>AD/DB = AE/EC</p> Signup and view all the answers

    What is the conclusion of the Triangle Proportionality Theorem?

    <p>The corresponding sides are in proportion, and the triangles are similar.</p> Signup and view all the answers

    What is the condition for triangles with the same height to have areas proportional to their bases?

    <p>The heights must be equal.</p> Signup and view all the answers

    What is the formula for the area of a triangle?

    <p>Area = 1/2 × base × height</p> Signup and view all the answers

    What is the statement of the Mid-point Theorem?

    <p>The line joining the midpoints of two sides of a triangle is parallel to the third side and equal to half the length of the third side.</p> Signup and view all the answers

    What is the converse of the Mid-point Theorem?

    <p>The line drawn from the midpoint of one side of a triangle parallel to another side bisects the third side of the triangle.</p> Signup and view all the answers

    What is the proportionality statement for triangles with equal bases and between the same parallel lines?

    <p>The areas are equal.</p> Signup and view all the answers

    What is the proportionality statement for triangles with the same height and same base?

    <p>The areas are equal.</p> Signup and view all the answers

    What is the relationship between the heights of two triangles with equal areas and the same base?

    <p>The heights are equal.</p> Signup and view all the answers

    What is the conclusion of the Proportion Theorem?

    <p>The line divides the sides proportionally.</p> Signup and view all the answers

    What is the condition for two triangles to be similar?

    <p>They have equal corresponding angles and sides in the same proportion</p> Signup and view all the answers

    What is the statement of the converse of the Pythagorean theorem?

    <p>If the square of one side of a triangle is equal to the sum of the squares of the other two sides, then the angle included by these two sides is a right angle.</p> Signup and view all the answers

    What is the formula for the area of a triangle?

    <p>Area = (1/2) × base × height</p> Signup and view all the answers

    What is the similarity condition for polygons?

    <p>All pairs of corresponding angles are equal, and all pairs of corresponding sides are in the same proportion.</p> Signup and view all the answers

    What is the purpose of constructing a perpendicular line in the proof of the Pythagorean theorem?

    <p>To show that the two triangles are similar</p> Signup and view all the answers

    What is the result of adding the two results from the similar triangles in the proof of the Pythagorean theorem?

    <p>AB^2 + AC^2 = BC^2</p> Signup and view all the answers

    What is the statement of the theorem that relates the lengths of the sides of a right-angled triangle?

    <p>The square on the hypotenuse of a right-angled triangle is equal to the sum of the squares on the other two sides.</p> Signup and view all the answers

    What is the condition for two triangles to have areas proportional to their bases?

    <p>They have equal bases between the same parallel lines</p> Signup and view all the answers

    Given a cubic function (f(x) = 2x^3 - 3x^2 + x - 1), what is the equation of the tangent line at the point where (x = 1)?

    <p>y = 2x - 2</p> Signup and view all the answers

    The second derivative of a function (f(x)) is denoted by (f''(x)). If (f''(x) > 0) for all (x) in a particular interval, what can we conclude about the graph of (f(x)) within that interval?

    <p>The graph of (f(x)) is concave up.</p> Signup and view all the answers

    A cubic function is defined as (f(x) = ax^3 + bx^2 + cx + d). If the coefficient (a) is negative, what can we say about the shape of the graph of (f(x)) as (x) approaches positive infinity?

    <p>The graph falls to the right.</p> Signup and view all the answers

    If a function has a local maximum at a point, what must be true about the first derivative of the function at that point?

    <p>The first derivative is zero.</p> Signup and view all the answers

    What is the relationship between the gradients of the tangent and the normal to a curve at a given point?

    <p>The product of the gradients is -1.</p> Signup and view all the answers

    A cubic function is defined as (f(x) = ax^3 + bx^2 + cx + d). What is the maximum number of x-intercepts this function can have?

    <p>3</p> Signup and view all the answers

    To find the y-intercept of a cubic function (f(x) = ax^3 + bx^2 + cx + d), what value do we substitute for (x)?

    <p>0</p> Signup and view all the answers

    What is the second derivative of the function (f(x) = x^4 - 3x^2 + 2)?

    <p>12x^2 - 6</p> Signup and view all the answers

    Consider the cubic function (f(x) = x^3 - 3x^2 + 2x). If (f''(x) < 0) for all (x) in the interval (1, 2), what can we conclude about the graph of (f(x)) within this interval?

    <p>The graph is concave down.</p> Signup and view all the answers

    Given a function (f(x) = x^3 - 4x^2 + 5x - 2), at which of the following values of (x) does the function have a stationary point?

    <p>x = 3</p> Signup and view all the answers

    In a triangle ABC, DE is parallel to BC and intersects sides AB and AC at D and E respectively. If AD = 4 cm, DB = 6 cm, and AE = 5 cm, what is the length of EC?

    <p>7.5 cm</p> Signup and view all the answers

    A rectangle has a length of 12 cm and a width of 8 cm. A square has the same area as the rectangle. What is the side length of the square?

    <p>9.6 cm</p> Signup and view all the answers

    A rhombus has diagonals of length 10 cm and 24 cm. What is the area of the rhombus?

    <p>120 cm²</p> Signup and view all the answers

    Two similar triangles have corresponding sides in the ratio 3:5. If the perimeter of the smaller triangle is 24 cm, what is the perimeter of the larger triangle?

    <p>40 cm</p> Signup and view all the answers

    A trapezium has bases of length 8 cm and 12 cm, and a height of 6 cm. What is the area of the trapezium?

    <p>60 cm²</p> Signup and view all the answers

    A kite has diagonals of length 16 cm and 12 cm. What is the area of the kite?

    <p>96 cm²</p> Signup and view all the answers

    Two similar polygons have corresponding sides in the ratio 2:3. If the area of the smaller polygon is 16 cm², what is the area of the larger polygon?

    <p>36 cm²</p> Signup and view all the answers

    In a triangle ABC, DE is parallel to BC, AD = 5 cm, DB = 8 cm, and AE = 7 cm. What is the length of EC?

    <p>11.2 cm</p> Signup and view all the answers

    A parallelogram has a base of 10 cm and a height of 6 cm. A triangle has the same base and height as the parallelogram. What is the ratio of the area of the triangle to the area of the parallelogram?

    <p>1:2</p> Signup and view all the answers

    Two similar triangles have corresponding sides in the ratio 4:7. If the area of the larger triangle is 196 cm², what is the area of the smaller triangle?

    <p>64 cm²</p> Signup and view all the answers

    Triangle ABC is similar to triangle DEF, with AB = 6 cm, DE = 9 cm, and AC = 8 cm. What is the length of DF?

    <p>12 cm</p> Signup and view all the answers

    Two triangles are similar if they have the same shape but differ in size. Which of the following statements is not a condition for similarity?

    <p>The triangles have the same area.</p> Signup and view all the answers

    If DE is the line joining the midpoints of sides AB and AC of triangle ABC, and BC = 10 cm, what is the length of DE?

    <p>5 cm</p> Signup and view all the answers

    In triangle ABC, D and E are the midpoints of sides AB and AC respectively. If DE = 5 cm, what is the length of BC?

    <p>10 cm</p> Signup and view all the answers

    Triangle ABC is similar to triangle DEF. If the ratio of their corresponding sides is 2:3, and the area of triangle ABC is 12 square cm, what is the area of triangle DEF?

    <p>27 square cm</p> Signup and view all the answers

    Triangle ABC has sides AB = 8 cm, BC = 6 cm, and AC = 10 cm. Triangle DEF has sides DE = 12 cm, EF = 9 cm, and DF = 15 cm. Are the two triangles similar?

    <p>Yes, because all corresponding sides are in the same proportion.</p> Signup and view all the answers

    Two triangles are equiangular. Which of the following statements is always true?

    <p>The triangles are similar.</p> Signup and view all the answers

    In triangle ABC, D and E are points on sides AB and AC respectively, such that DE is parallel to BC. If AD = 4 cm, DB = 6 cm, and AE = 5 cm, what is the length of EC?

    <p>7.5 cm</p> Signup and view all the answers

    Triangle ABC has a base BC of 10 cm and a height of 6 cm. Triangle DEF is similar to triangle ABC, and the ratio of their corresponding sides is 3:2. What is the area of triangle DEF?

    <p>45 square cm</p> Signup and view all the answers

    Two polygons are similar if they have the same shape but differ in size. Which of the following is not a property of similar polygons?

    <p>The polygons have the same area.</p> Signup and view all the answers

    What is the primary concept that the Achilles and the tortoise paradox illustrates?

    <p>The concept of limits</p> Signup and view all the answers

    What is the reason why the function y = (x^2 + 4x - 12)/(x + 6) is not defined at x = -6?

    <p>The denominator becomes zero</p> Signup and view all the answers

    What is the graphical representation of the function y = (x^2 + 4x - 12)/(x + 6)?

    <p>A straight line with a hole at x = -6</p> Signup and view all the answers

    What is the limiting value of the function y = (x^2 + 4x - 12)/(x + 6) as x approaches -6?

    <p>-8</p> Signup and view all the answers

    What is the simplified form of the function y = (x^2 + 4x - 12)/(x + 6) for x ≠ -6?

    <p>x - 2</p> Signup and view all the answers

    What is the significance of the hole in the graph of the function y = (x^2 + 4x - 12)/(x + 6) at x = -6?

    <p>It represents a limit of the function</p> Signup and view all the answers

    If the coefficient a in a cubic function is positive, what is the shape of the graph?

    <p>The graph rises to the right and falls to the left.</p> Signup and view all the answers

    What is the relationship between the gradients of the tangent and the normal to a curve?

    <p>m_tangent * m_normal = -1</p> Signup and view all the answers

    What is the purpose of finding the second derivative of a function?

    <p>To determine the change in gradient of the original function.</p> Signup and view all the answers

    What is the notation for the second derivative of a function y?

    <p>y''</p> Signup and view all the answers

    What is the first step to find the equation of a tangent to a curve?

    <p>Find the derivative of the function.</p> Signup and view all the answers

    What is the purpose of finding the stationary points of a function?

    <p>To find the maximum or minimum value of the function.</p> Signup and view all the answers

    What is the result of differentiating the function twice?

    <p>The second derivative of the function.</p> Signup and view all the answers

    What does the derivative allow us to determine about a function?

    <p>The gradient of the function.</p> Signup and view all the answers

    What is the method to find the y-intercept of a cubic function?

    <p>Set x = 0 and solve for y.</p> Signup and view all the answers

    What is the relationship between the gradient of the tangent and the curve at a point?

    <p>The gradient of the tangent is equal to the negative reciprocal of the gradient of the curve.</p> Signup and view all the answers

    If the remainder is zero when dividing a polynomial p(x) by cx - d, what can be concluded about cx - d?

    <p>It is a factor of p(x)</p> Signup and view all the answers

    If p(x) is divided by cx - d and the remainder is R, what is the general form of p(x)?

    <p>p(x) = (cx - d)Q(x) + R</p> Signup and view all the answers

    What is the relationship between the degree of Q(x) and p(x) when p(x) is divided by a linear polynomial cx - d?

    <p>The degree of Q(x) is one less than the degree of p(x)</p> Signup and view all the answers

    What is the condition for a polynomial p(x) to have a root d/c, where c and d are constants?

    <p>p(d/c) = 0</p> Signup and view all the answers

    What is the quadratic formula used for in solving cubic equations?

    <p>To solve the quadratic polynomial obtained after division</p> Signup and view all the answers

    If f(x) is a cubic polynomial and f(d/c) = 0, what can be concluded about cx - d?

    <p>It is a linear factor of f(x)</p> Signup and view all the answers

    What is the equation of a circle with center at the origin and radius r?

    <p>x^2 + y^2 = r^2</p> Signup and view all the answers

    What is the purpose of factorization in solving cubic equations?

    <p>To find the factors of the cubic polynomial</p> Signup and view all the answers

    What is the next step after finding a factor of a cubic polynomial using the Factor Theorem?

    <p>All of the above</p> Signup and view all the answers

    Why is the Factor Theorem useful in solving cubic equations?

    <p>It helps to find the factors of the polynomial</p> Signup and view all the answers

    Which condition indicates a point of inflection on a curve?

    <p>The concavity changes from concave up to concave down.</p> Signup and view all the answers

    What does it mean when a cubic polynomial is described as 'concave down'?

    <p>The second derivative is less than zero.</p> Signup and view all the answers

    How can the y-intercept of a cubic polynomial be determined?

    <p>By substituting $x=0$ into the polynomial function.</p> Signup and view all the answers

    Which of the following steps is essential to determine the turning points of a cubic polynomial?

    <p>Setting the derivative equal to zero and solving for $x$.</p> Signup and view all the answers

    What signifies the end behavior of a cubic polynomial?

    <p>The signs of the coefficients of the polynomial.</p> Signup and view all the answers

    What is the first step in the synthetic division method for polynomials?

    <p>Write the coefficients of the dividend polynomial.</p> Signup and view all the answers

    What outcome occurs if the second derivative of a function is zero but does not change sign?

    <p>No point of inflection exists.</p> Signup and view all the answers

    In terms of cubic polynomial division, what does the Remainder Theorem state about the evaluation of a polynomial?

    <p>The polynomial evaluated at $x=rac{d}{c}$ gives the remainder.</p> Signup and view all the answers

    What does the equation of the form $f(x) = ax^3 + bx^2 + cx + d$ represent?

    <p>A polynomial function of degree three.</p> Signup and view all the answers

    What is the fundamental principle in geometry that relates the lengths of the sides of a right-angled triangle?

    <p>Pythagorean Theorem</p> Signup and view all the answers

    If two triangles are equiangular, what can be said about their corresponding sides?

    <p>They are in proportion</p> Signup and view all the answers

    What is the condition for a triangle to be a right-angled triangle according to the Converse of the Pythagorean Theorem?

    <p>The square of one side is equal to the sum of the squares of the other two sides</p> Signup and view all the answers

    What can be said about triangles with equal bases between the same parallel lines?

    <p>They have equal areas</p> Signup and view all the answers

    What is the formula for the area of a triangle?

    <p>½ × base × height</p> Signup and view all the answers

    In a triangle, a line joining the midpoints of two sides is:

    <p>parallel to the third side</p> Signup and view all the answers

    What is the condition for polygons to be similar?

    <p>All pairs of corresponding angles are equal and all pairs of corresponding sides are in the same proportion</p> Signup and view all the answers

    If two polygons are similar, which of the following must be true?

    <p>All pairs of corresponding angles are equal and all pairs of corresponding sides are in the same proportion</p> Signup and view all the answers

    In similar triangles, which of the following is NOT true?

    <p>The areas of the triangles are equal</p> Signup and view all the answers

    What is the relationship between the areas of triangles with equal heights?

    <p>They are proportional to their bases</p> Signup and view all the answers

    If ∆ABC ∼ ∆DEF, which of the following is true?

    <p>AB/DE = BC/EF</p> Signup and view all the answers

    What is the condition for two triangles to be similar?

    <p>They are equiangular or have proportional sides</p> Signup and view all the answers

    What is the condition for two polygons to be similar?

    <p>All pairs of corresponding angles are equal and all pairs of corresponding sides are in the same proportion</p> Signup and view all the answers

    If ∆ABC is similar to ∆DEF, which of the following is true?

    <p>∠A = ∠D</p> Signup and view all the answers

    What is the theorem that states that equiangular triangles are similar?

    <p>Theorem of equiangular triangles</p> Signup and view all the answers

    What is the formula for the area of a triangle?

    <p>Area = 1/2 × base × height</p> Signup and view all the answers

    If ∆ABC ∼ ∆DEF, what can be said about their areas?

    <p>The areas are in the same proportion as the squares of their corresponding sides</p> Signup and view all the answers

    What is the condition for triangles to be similar?

    <p>All pairs of corresponding angles are equal or all pairs of corresponding sides are in the same proportion</p> Signup and view all the answers

    What does it mean for two ratios to be in proportion?

    <p>The cross products of the ratios are equal.</p> Signup and view all the answers

    Which property of proportion states that if you have ratios $\frac{w}{x} = \frac{y}{z}$, you can swap the numerator and denominator?

    <p>Reciprocal Proportion</p> Signup and view all the answers

    What is the conclusion of the Basic Proportionality Theorem when a line is drawn parallel to one side of a triangle?

    <p>The two other sides are divided proportionally.</p> Signup and view all the answers

    What characteristic identifies polygons as being similar?

    <p>Corresponding angles are equal and corresponding sides are in proportion.</p> Signup and view all the answers

    In the context of finding area, what formula is used for the area of a parallelogram?

    <p>Area = base × height</p> Signup and view all the answers

    If you have a rectangle with a length of 10 units and a width of 5 units, what is the area?

    <p>50 square units</p> Signup and view all the answers

    What is a common property of all polygons?

    <p>They consist of at least three line segments.</p> Signup and view all the answers

    Which formula represents the area of a kite?

    <p>Area = \frac{1}{2} × diagonal AC × diagonal BD</p> Signup and view all the answers

    When applying proportionality in geometric figures, which theorem is primarily referenced?

    <p>Basic Proportionality Theorem</p> Signup and view all the answers

    What is the equation of the tangent line to the circle ( (x - 2)^2 + (y - 1)^2 = 9 ) at the point ( (4, 4) )?

    <p>( y = -3x + 16 )</p> Signup and view all the answers

    What is the center and radius of the circle with equation ( x^2 + y^2 - 6x + 4y - 12 = 0 )?

    <p>Center: (3, -2), radius: 5</p> Signup and view all the answers

    The equation of a circle is ( x^2 + y^2 - 4x + 6y - 3 = 0 ). What is the radius of the circle?

    <p>( \sqrt{19} )</p> Signup and view all the answers

    If the point ( (3, -2) ) lies on the circle with equation ( (x - 1)^2 + (y + 3)^2 = r^2 ), what is the value of ( r )?

    <p>( \sqrt{29} )</p> Signup and view all the answers

    What is the equation of the circle with center at ( (1, -2) ) and passing through the point ( (4, 1) )?

    <p>( (x - 1)^2 + (y + 2)^2 = 18 )</p> Signup and view all the answers

    What is the equation of the tangent line to the circle ( x^2 + y^2 = 25 ) at the point ( (3, 4) )?

    <p>( y = -\frac{4}{3}x + \frac{25}{3} )</p> Signup and view all the answers

    A circle has a diameter with endpoints at ( (-2, 3) ) and ( (4, -1) ). What is the equation of this circle?

    <p>( (x - 1)^2 + (y - 1)^2 = 13 )</p> Signup and view all the answers

    What is the equation of the circle with center at ( (2, -5) ) and tangent to the line ( x + 2y = 1 )?

    <p>( (x - 2)^2 + (y + 5)^2 = 5 )</p> Signup and view all the answers

    A circle has a radius of 5 units and its center is at ( (3, -1) ). What is the equation of the tangent line to the circle at the point ( (8, -1) )?

    <p>( y = -1 )</p> Signup and view all the answers

    What is the equation of the circle passing through the points ( (1, 2) ), ( (5, 2) ), and ( (1, 6) )?

    <p>( (x - 3)^2 + (y - 4)^2 = 25 )</p> Signup and view all the answers

    In a triangle ABC, DE is drawn parallel to BC. If AD = 3, DB = 4, and EC = 5, what is the length of AE?

    <p>6.25</p> Signup and view all the answers

    If two triangles are similar, which of the following statements is true?

    <p>The corresponding sides are in proportion</p> Signup and view all the answers

    In a triangle ABC, the area is 12 square units and the base is 4 units. What is the height of the triangle?

    <p>3 units</p> Signup and view all the answers

    If two triangles have equal heights and their areas are in the ratio 2:3, what is the ratio of their bases?

    <p>3:2</p> Signup and view all the answers

    In a triangle ABC, XYZ is a triangle with the same base and equal in area. What can be concluded about the heights of the triangles?

    <p>The heights are equal</p> Signup and view all the answers

    If a line is drawn parallel to one side of a triangle, what is the effect on the other two sides?

    <p>They are divided proportionally</p> Signup and view all the answers

    What is the name of the theorem that states that triangles with equal heights have areas proportional to their bases?

    <p>The triangle proportionality theorem</p> Signup and view all the answers

    If two triangles are equiangular, what is the relationship between their corresponding sides?

    <p>They are in proportion</p> Signup and view all the answers

    What is the ratio of the areas of two triangles with equal heights and bases in the ratio 3:4?

    <p>3:4</p> Signup and view all the answers

    What is the formula for the area of a triangle?

    <p>Area = 1/2 × base × height</p> Signup and view all the answers

    What is the derivative of the function ( f(x) = 3x^2 + 2x - 1 ) using the general rule for differentiation?

    <p>( 6x + 2 )</p> Signup and view all the answers

    What is the derivative of (f(x) = 5x^3 - 2x^2 + 7 ) using the rules for differentiation?

    <p>( 15x^2 - 4x )</p> Signup and view all the answers

    What is the derivative of (f(x) = (x^2 + 3)(2x - 1)) using the product rule?

    <p>( 4x^3 + 6x^2 - 3x )</p> Signup and view all the answers

    What is the derivative of (f(x) = \frac{x^3 + 2x}{x^2}) using the quotient rule?

    <p>( 1 - \frac{4}{x^3} )</p> Signup and view all the answers

    What is the gradient of the tangent to the curve (y = x^2 - 3x + 2) at the point (x = 2)?

    <p>(1)</p> Signup and view all the answers

    What is the equation of the tangent to the curve (y = x^3 + 2x) at the point (x = 1)?

    <p>(y = 5x - 3 )</p> Signup and view all the answers

    What is the derivative of (f(x) = \sin(x)) using the first principles definition of the derivative?

    <p>( \cos(x) )</p> Signup and view all the answers

    What is the derivative of (f(x) = \cos(x)) using the first principles definition of the derivative?

    <p>( -\sin(x) )</p> Signup and view all the answers

    What is the derivative of (f(x) = e^x) using the first principles definition of the derivative?

    <p>( e^x )</p> Signup and view all the answers

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