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

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

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

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

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

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

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

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

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

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

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

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

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

Why is the factor theorem useful in solving cubic equations?

<p>It helps in factorizing the polynomial (A)</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 (D)</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. (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 at (x = -6). (C)</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. (C)</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) (A)</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. (A)</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 (D)</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 (A)</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 (A)</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 (B)</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 (B)</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 (C)</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 (C)</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 (C)</p> Signup and view all the answers

What is a ratio?

<p>A relationship between two quantities with the same units (D)</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 (C)</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. (B)</p> Signup and view all the answers

What indicates the change in gradient of the original function?

<p>The second derivative. (C)</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. (C)</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. (C)</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. (D)</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. (B)</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. (C)</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. (B)</p> Signup and view all the answers

Which notation indicates the second derivative of a function?

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

What is the primary purpose of simplifying ratios?

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

Which of the following is a property of proportion?

<p>Cross Multiplication (C)</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 (A), Basic Proportionality Theorem (C)</p> Signup and view all the answers

What is the formula for the area of a triangle?

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

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

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

Which of the following is not a type of polygon?

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

What is the formula for the area of a trapezium?

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

Which of the following is a characteristic of similar polygons?

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

What is the first step in solving proportional problems?

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

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

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

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

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

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

<p>$0$ (A)</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 (D)</p> Signup and view all the answers

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

<p>$D_xy$ (A)</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 (D)</p> Signup and view all the answers

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

<p>$3x^2 + 4$ (C)</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>$-8$ (A)</p> Signup and view all the answers

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

<p>Derivation (D)</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>$k imes rac{d}{dx}[f(x)]$ (B), $kf'(x)$ (C)</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. (A)</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. (D)</p> Signup and view all the answers

What is the formula for the area of a triangle?

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

What is the relationship between two triangles that are equiangular?

<p>They are similar. (B)</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. (D)</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. (A)</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. (C)</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. (B)</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. (B)</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. (B)</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. (C)</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 (A)</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. (C)</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 (A)</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 (D)</p> Signup and view all the answers

Two polygons are similar if they have:

<p>All of the above. (D)</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. (B)</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 (B)</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. (C)</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 (C)</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. (D)</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 (C)</p> Signup and view all the answers

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

<p>$2x$ (B)</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>$\lim_{h \to 0} \frac{f(a + h) - f(a)}{h}$ (D)</p> Signup and view all the answers

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

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

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

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

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

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

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

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

What is the purpose of differentiating a function?

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

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

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

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

<p>$2x + 2$ (D)</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>$y = f'(a)(x - a) + f(a)$ (C)</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. (B)</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) (A)</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. (B)</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. (C)</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. (B)</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 (B)</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) (B)</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 (B)</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. (D)</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. (C)</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 (C)</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. (D)</p> Signup and view all the answers

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

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

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

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

What is a tangent to a circle?

<p>A line that intersects the circle at one point. (A)</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. (D)</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. (A)</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. (C)</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'' (A)</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. (D)</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. (C)</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. (D)</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. (B)</p> Signup and view all the answers

What is the result of differentiating the function twice?

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

What indicates the change in gradient of the original function?

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

What is the condition for two triangles to be similar?

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

What is the formula for the area of a triangle?

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

Which theorem states that equiangular triangles are similar?

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

What is the formula for the Proportion Theorem?

<p>AD/DB = AE/EC (D)</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. (D)</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 (C)</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 (B)</p> Signup and view all the answers

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

<p>They are similar (D)</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 (B)</p> Signup and view all the answers

What is the definition of similar polygons?

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

What does it mean if a graph is concave up?

<p>The second derivative is positive. (B)</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. (C)</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. (B)</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. (C)</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. (D)</p> Signup and view all the answers

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

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

Which of the following best describes concave down graphs?

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

What is the purpose of synthetic division in polynomial division?

<p>To simplify the coefficients systematically. (C)</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. (B)</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. (D)</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 ) (D)</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) ) (D)</p> Signup and view all the answers

Which condition confirms that two triangles are similar?

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

A tangent to a circle intersects the circle at exactly:

<p>One point (C)</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} ) (D)</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. (D)</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. (B)</p> Signup and view all the answers

What is the area formula for a triangle?

<p>Area = 1/2 × base × height. (C)</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 ) (C)</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. (A)</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} ) (D)</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. (C)</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. (D)</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 (B)</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 ) (A)</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. (A)</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. (C)</p> Signup and view all the answers

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

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

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

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

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

<p>Area = length × width (B)</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 (A)</p> Signup and view all the answers

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

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

Which formula correctly calculates the area of a trapezium?

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

Which of the following statements regarding ratios is NOT true?

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

In polygons, what defines a closed shape?

<p>Each segment intersects exactly two others. (C)</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 (C)</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 (C)</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 (B)</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 (A)</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 (C)</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 (A)</p> Signup and view all the answers

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

<p>3x^2 (C)</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 (B)</p> Signup and view all the answers

What is the purpose of long division in polynomial division?

<p>To find the quotient and remainder (A)</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 (A)</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 (C)</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 (A)</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 (D)</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 (C)</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 (B)</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 (C)</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. (B)</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 (D)</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 (D)</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 (A)</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 (D)</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) (A)</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 (C)</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. (D)</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) (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. (C)</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) (A)</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 (B)</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. (B)</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 (A)</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. (B)</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>$y = x - 2$ (A)</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) (C)</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 (C)</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 (D)</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 (A)</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 (B)</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) (C)</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 (A)</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 (B)</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 (A)</p> Signup and view all the answers

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

<p>pi (B)</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 (A)</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 (D)</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 (C)</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 (C)</p> Signup and view all the answers

What is a tangent to a circle?

<p>A line that intersects the circle at one point (B)</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 (C)</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. (D)</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. (D)</p> Signup and view all the answers

What is the formula for the area of a triangle?

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

What is the conclusion of the Proportion Theorem?

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

What is the formula for the area of a triangle?

<p>Area = (1/2) × base × height (B)</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. (A)</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 (A)</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 (D)</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. (A)</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 (C)</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 (A)</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. (A)</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. (D)</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. (A)</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. (C)</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 (D)</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 (C)</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 (B)</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. (C)</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 (C), x = 1 (D)</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 (A)</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 (B)</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 (A)</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 (B)</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 (D)</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 (B)</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 (A)</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 (C)</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 (D)</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 (B)</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 (C)</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. (C)</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 (C)</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 (B)</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 (D)</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. (A)</p> Signup and view all the answers

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

<p>The triangles are similar. (D)</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 (B)</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 (D)</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. (B)</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 (B)</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 (B)</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 (B)</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 (C)</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 (A)</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 (A)</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. (A)</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 (B)</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. (A)</p> Signup and view all the answers

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

<p>y'' (A)</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. (C)</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. (C)</p> Signup and view all the answers

What is the result of differentiating the function twice?

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

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

<p>The gradient of the function. (C)</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. (B)</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. (B)</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) (A)</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 (A)</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) (B)</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 (D)</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 (C)</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) (C)</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 (C)</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 (B)</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 (D)</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 (B)</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. (C)</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. (B)</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. (B)</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 $x$. (A)</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. (B)</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. (B)</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. (C)</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. (B)</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. (B)</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 (B)</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 (B)</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 (B)</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 (C)</p> Signup and view all the answers

What is the formula for the area of a triangle?

<p>½ × base × height (D)</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 (C)</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 (D)</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 (D)</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 (A)</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 (C)</p> Signup and view all the answers

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

<p>AB/DE = BC/EF (A)</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 (D)</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 (D)</p> Signup and view all the answers

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

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

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

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

What is the formula for the area of a triangle?

<p>Area = 1/2 × base × height (C)</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 (A)</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 (D)</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. (B)</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 (D)</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. (C)</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. (B)</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 (A)</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 (B)</p> Signup and view all the answers

What is a common property of all polygons?

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

Which formula represents the area of a kite?

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

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

<p>Basic Proportionality Theorem (A)</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 ) (B)</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 (A)</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} ) (A)</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} ) (B)</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 ) (B)</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} ) (C)</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 ) (D)</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 ) (B)</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 ) (B)</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 ) (A)</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 (A)</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 (D)</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 (C)</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 (A)</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 (A)</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 (B)</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 (B)</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 (C)</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 (C)</p> Signup and view all the answers

What is the formula for the area of a triangle?

<p>Area = 1/2 × base × height (A)</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 ) (B)</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 ) (D)</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 ) (D)</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} ) (C)</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) (B)</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 ) (D)</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) ) (C)</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) ) (D)</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 ) (D)</p> Signup and view all the answers

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