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Gr 11 Math Nov P1 (Hard)
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Gr 11 Math Nov P1 (Hard)

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Questions and Answers

What is the value of $r$ when $r^{3} = 64$?

  • 4 (correct)
  • 2
  • 6
  • 3
  • Simplify the expression $\sqrt[4]{16a^{4}}$:

  • 4a
  • 2a
  • a^2
  • 2a^2 (correct)
  • Rationalize the denominator of the expression $rac{2}{\sqrt{3}}$:

  • $rac{\sqrt{6}}{6}$
  • $rac{2\sqrt{3}}{3}$ (correct)
  • $rac{2\sqrt{6}}{6}$
  • $rac{\sqrt{3}}{3}$
  • What is the value of $a$ when $a^{3/2} = 9$?

    <p>6</p> Signup and view all the answers

    Simplify the expression $\sqrt[3]{8a^{3}}$:

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

    What is the value of $x$ when $x^{-2/3} = rac{1}{4}$?

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

    Rationalize the denominator of the expression $rac{3}{\sqrt[3]{2}}$:

    <p>$rac{3\sqrt[3]{4}}{2}$</p> Signup and view all the answers

    What is the value of $a$ when $a^{2/3} = 4$?

    <p>32</p> Signup and view all the answers

    What is the expression for a^(-m) in terms of positive exponents?

    <p>1/a^m</p> Signup and view all the answers

    What is the rule for raising a power to another power?

    <p>(a^m)^n = a^(mn)</p> Signup and view all the answers

    What is the purpose of rationalizing denominators?

    <p>To eliminate radicals from the denominator</p> Signup and view all the answers

    When solving surd equations, what is the first step?

    <p>Isolate the surd term</p> Signup and view all the answers

    What is the formula for exponential growth or decay?

    <p>P(t) = P_0 * (1 + r)^t</p> Signup and view all the answers

    What is the purpose of converting surds into their exponential form?

    <p>To make manipulation easier</p> Signup and view all the answers

    When solving quadratic surd equations, what is the second step?

    <p>Square both sides of the equation</p> Signup and view all the answers

    What is the formula for a^(m/n) in terms of roots?

    <p>āˆš(a^(m/n))</p> Signup and view all the answers

    What is the value of a^0 when a is not equal to 0?

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

    What is the purpose of checking solutions when solving surd equations?

    <p>To verify the solution is correct</p> Signup and view all the answers

    What is the formula for exponential growth or decay?

    <p>P = Pā‚€e^rt</p> Signup and view all the answers

    What is the purpose of completing the square method?

    <p>To solve quadratic equations</p> Signup and view all the answers

    What is the value of aā°, where a is not equal to 0?

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

    What is the formula for quadratic equations?

    <p>x = (-b Ā± āˆš(bĀ² - 4ac)) / 2a</p> Signup and view all the answers

    What is the definition of irrational numbers?

    <p>Non-terminating and non-recurring decimals</p> Signup and view all the answers

    What is the formula for the nth root of a number?

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

    What is the formula for rational exponents?

    <p>a^(m/n) = (a^m)^(1/n)</p> Signup and view all the answers

    What is the purpose of converting percentages to decimal form?

    <p>To make calculations easier</p> Signup and view all the answers

    What is the definition of natural numbers?

    <p>Whole numbers, excluding 0</p> Signup and view all the answers

    What is the formula for completing the square?

    <p>xĀ² + bx + c = (x + b/2a)Ā² - (bĀ² - 4ac) / 4aĀ²</p> Signup and view all the answers

    What is the value of x in a quadratic equation if bĀ² - 4ac = 0?

    <p>One distinct real root</p> Signup and view all the answers

    What is the purpose of making a substitution when solving quadratic equations?

    <p>To simplify the process by identifying a repeated expression</p> Signup and view all the answers

    What is the formula used to find the roots of a quadratic equation?

    <p>x = -b Ā± āˆš(bĀ² - 4ac) / 2a</p> Signup and view all the answers

    What is the condition for a quadratic equation to have two complex conjugate roots?

    <p>bĀ² - 4ac &lt; 0</p> Signup and view all the answers

    What is the first step in solving a quadratic equation by substitution?

    <p>Identify the repeated expression</p> Signup and view all the answers

    What is the purpose of the discriminant in a quadratic equation?

    <p>To determine the nature of the roots</p> Signup and view all the answers

    What is the formula used to find the discriminant of a quadratic equation?

    <p>Ī” = bĀ² - 4ac</p> Signup and view all the answers

    What is the condition for a quadratic equation to have exactly one real root?

    <p>bĀ² - 4ac = 0</p> Signup and view all the answers

    What is the last step in finding the quadratic equation given the roots?

    <p>Write the final answer</p> Signup and view all the answers

    What is the purpose of verifying restrictions when solving a quadratic equation by substitution?

    <p>To ensure the values do not make the denominator equal to zero</p> Signup and view all the answers

    What is the nature of the roots of a quadratic equation if the discriminant Ī” is equal to 0?

    <p>Real and equal</p> Signup and view all the answers

    What is the formula for the discriminant Ī” of a quadratic equation in standard form ax^2 + bx + c = 0?

    <p>Ī” = b^2 - 4ac</p> Signup and view all the answers

    What is the purpose of determining the critical values when solving a quadratic inequality?

    <p>To identify where the quadratic expression equals zero</p> Signup and view all the answers

    What is the final step when solving a quadratic inequality?

    <p>Summarize the solution intervals on a number line</p> Signup and view all the answers

    What is the purpose of the sign analysis in quadratic inequalities?

    <p>To identify where the quadratic expression is positive or negative</p> Signup and view all the answers

    What is the condition for a system of simultaneous equations to have a unique solution?

    <p>The system has the same number of independent equations as variables</p> Signup and view all the answers

    What is the advantage of using a graphical approach when solving quadratic inequalities?

    <p>It helps to visualize the solution</p> Signup and view all the answers

    What type of quadratic inequalities require special consideration when solving?

    <p>Inequalities with fractions</p> Signup and view all the answers

    What is the first step when solving a quadratic inequality?

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

    What is the purpose of solving quadratic inequalities?

    <p>To identify the regions where a quadratic expression satisfies an inequality</p> Signup and view all the answers

    What is the average gradient of a curve at point P when h = 0?

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

    What is the effect of a change in q on the graph of y = a/x + q?

    <p>A vertical shift</p> Signup and view all the answers

    What is the horizontal asymptote of the graph of y = a/(x + p) + q?

    <p>y = q</p> Signup and view all the answers

    What is the effect of a change in a on the shape of the graph of y = a/x + q?

    <p>A change in the shape of the graph</p> Signup and view all the answers

    What is the range of the function y = a/(x + p) + q?

    <p>{y: y āˆˆ ā„, y ā‰  q}</p> Signup and view all the answers

    What is the point of intersection of the axes of symmetry of the graph of y = a/(x + p) + q?

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

    What is the effect of a change in p on the graph of y = a/(x + p) + q?

    <p>A horizontal shift</p> Signup and view all the answers

    What is the domain of the function y = a/(x + p) + q?

    <p>{x: x āˆˆ ā„, x ā‰  -p}</p> Signup and view all the answers

    What is the main advantage of using the substitution method to solve a system of linear equations?

    <p>It reduces the number of variables by one in the first step.</p> Signup and view all the answers

    What is the vertical asymptote of the graph of y = a/(x + p) + q?

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

    What is the effect of a change in q on the exponential function y = ab^x + q?

    <p>A vertical shift</p> Signup and view all the answers

    What is the purpose of identifying the question and determining what needs to be solved in a word problem?

    <p>To identify the key elements of the problem that need to be addressed.</p> Signup and view all the answers

    What is the effect of the parameter $p$ on the graph of $y = a(x + p)^2 + q$?

    <p>A horizontal shift</p> Signup and view all the answers

    What is the characteristic of a quadratic sequence?

    <p>The second difference is constant.</p> Signup and view all the answers

    What is the effect of q on the graph of a quadratic function of the form y = ax^2 + q?

    <p>It shifts the graph vertically.</p> Signup and view all the answers

    What is the range of the function $y = a(x + p)^2 + q$ when $a > 0$?

    <p>{y : y ā‰„ q, y āˆˆ ā„}</p> Signup and view all the answers

    What is the equation of the axis of symmetry for $y = a(x + p)^2 + q$?

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

    What is the first step in solving a system of linear equations using the elimination method?

    <p>Add the two equations to eliminate one of the variables.</p> Signup and view all the answers

    How do you find the y-intercept of a quadratic function?

    <p>Set x = 0</p> Signup and view all the answers

    What is the purpose of translating words into algebraic expressions in a word problem?

    <p>To describe the problem mathematically.</p> Signup and view all the answers

    What is the effect of a negative value of $a$ on the graph of $y = a(x + p)^2 + q$?

    <p>The graph is a 'frown' and has a maximum turning point</p> Signup and view all the answers

    What is the general form of a quadratic sequence?

    <p>Tn = an^2 + bn + c</p> Signup and view all the answers

    What is the purpose of solving for the variables in a system of linear equations?

    <p>To find the values of the variables that satisfy both equations.</p> Signup and view all the answers

    What is the formula for the average gradient between two points on a curve?

    <p>$\frac{y_A - y_C}{x_A - x_C}$</p> Signup and view all the answers

    What is the effect of a positive value of q on the graph of a quadratic function of the form y = ax^2 + q?

    <p>The graph is shifted vertically upwards.</p> Signup and view all the answers

    What is the turning point of the function $y = a(x + p)^2 + q$?

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

    What is the purpose of checking the solution to ensure it is correct in a word problem?

    <p>To ensure that the solution is reasonable and makes sense in the context of the problem.</p> Signup and view all the answers

    How do you shift a parabola $m$ units to the right?

    <p>Replace $x$ with $x - m$</p> Signup and view all the answers

    What is the domain of the function $y = a(x + p)^2 + q$?

    <p>{x : x āˆˆ ā„}</p> Signup and view all the answers

    What is the effect of the parameter $q$ on the graph of $y = a(x + p)^2 + q$?

    <p>A vertical shift</p> Signup and view all the answers

    What is the effect of a change in $p$ on the graph of $y = ab^{(x+p)} + q$?

    <p>A horizontal shift to the left by $p$ units</p> Signup and view all the answers

    What is the range of $y = ab^{(x+p)} + q$ when $a > 0$?

    <p>{ $y : y &gt; q, y āˆˆ ā„$ }</p> Signup and view all the answers

    What is the formula for the book value or depreciated value in simple depreciation?

    <p>A = P(1 - in)</p> Signup and view all the answers

    What is the characteristic of the depreciation amount in compound depreciation?

    <p>It changes every year, decreasing as the asset's value decreases</p> Signup and view all the answers

    What is the purpose of using timelines in compound interest?

    <p>To visualize the periods and changes in compounding and interest rates</p> Signup and view all the answers

    What is the effect of a change in $a$ on the graph of $y = ab^{(x+p)} + q$?

    <p>The graph lies above or below the horizontal asymptote</p> Signup and view all the answers

    What is the formula for finding the annual depreciation rate ($i$) in simple decay?

    <p>i = (1 - A/P)^(1/n)</p> Signup and view all the answers

    What is the characteristic of the book value in compound depreciation?

    <p>It decreases exponentially over time</p> Signup and view all the answers

    What is the horizontal asymptote of the graph of $y = ab^{(x+p)} + q$?

    <p>y = q</p> Signup and view all the answers

    What is the purpose of modifying the interest rate and the number of compounding periods?

    <p>To adjust for compounding periods</p> Signup and view all the answers

    What is the formula for calculating the accumulated value at the end of each segment in a compound interest problem?

    <p>A = P(1 + i/p)^(np)</p> Signup and view all the answers

    What is the difference between nominal and effective interest rates?

    <p>Nominal interest rate is the rate per year, while effective interest rate is the rate per compounding period.</p> Signup and view all the answers

    What is the formula for calculating the probability of two independent events?

    <p>P(A and B) = P(A) Ɨ P(B)</p> Signup and view all the answers

    What is the definition of conditional probability?

    <p>The probability of an event occurring given that another event has occurred.</p> Signup and view all the answers

    What is the purpose of breaking down periods in a compound interest problem?

    <p>To calculate the accumulated value at the end of each segment.</p> Signup and view all the answers

    What is the formula for calculating the effective interest rate?

    <p>1 + i-effective = (1 + i-nominal/m)^m</p> Signup and view all the answers

    What is the difference between dependent and independent events?

    <p>Dependent events are affected by the occurrence of other events, while independent events are not.</p> Signup and view all the answers

    What is the purpose of using Venn diagrams in probability theory?

    <p>To visualize and represent the relationships between events and their probabilities.</p> Signup and view all the answers

    What is the formula for calculating the probability of two mutually exclusive events?

    <p>P(A or B) = P(A) + P(B)</p> Signup and view all the answers

    What is the purpose of calculating the accumulated value at the end of each segment in a compound interest problem?

    <p>To adjust the principal for the next period and calculate the accumulated value at the end of the next segment.</p> Signup and view all the answers

    What is the formula for the probability of the union of three events A, B, and C?

    <p>$P(A) + P(B) + P(C) - P(A \cap B) - P(A \cap C) - P(B \cap C) + P(A \cap B \cap C)$</p> Signup and view all the answers

    What is the condition for two events A and B to be independent?

    <p>$P(A) imes P(B) = P(A \cap B)$</p> Signup and view all the answers

    What is the purpose of a tree diagram?

    <p>To organize and visualize the different possible outcomes of a sequence of events</p> Signup and view all the answers

    What is the formula for the conditional probability of event A given event B?

    <p>$P(A \cap B) / P(B)$</p> Signup and view all the answers

    What is the purpose of a contingency table?

    <p>To test for independence between two events</p> Signup and view all the answers

    What is the formula for the probability of an event A in a contingency table?

    <p>$n(A) / n(Total)$</p> Signup and view all the answers

    What is the formula for the probability of two independent events A and B?

    <p>$P(A) imes P(B)$</p> Signup and view all the answers

    What is the condition for three events A, B, and C to be mutually exclusive?

    <p>$P(A \cap B) = P(A \cap C) = P(B \cap C) = 0$</p> Signup and view all the answers

    What is the formula for the probability of a path in a tree diagram?

    <p>$P(Event 1) imes P(Event 2) imes \ldots$</p> Signup and view all the answers

    What is the purpose of the independence test in a contingency table?

    <p>To test whether two events are independent or dependent</p> Signup and view all the answers

    What is the value of $x$ when $x^{rac{3}{4}} = 8$?

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

    Simplify the expression $\sqrt[3]{81a^6}$:

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

    Rationalize the denominator of the expression $rac{3}{\sqrt[5]{2}}$:

    <p>$rac{3\sqrt[5]{32}}{2}$</p> Signup and view all the answers

    What is the value of $a$ when $a^{rac{2}{3}} = 9$?

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

    Simplify the expression $\sqrt[4]{16a^8}$:

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

    Rationalize the denominator of the expression $rac{2}{\sqrt[3]{5}}$:

    <p>$rac{2\sqrt[3]{25}}{5}$</p> Signup and view all the answers

    What is the value of $x$ when $x^{-rac{2}{5}} = rac{1}{9}$?

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

    Simplify the expression $\sqrt[5]{32a^5}$:

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

    What is the condition for a quadratic equation to have two distinct real roots?

    <p>Ī” &gt; 0</p> Signup and view all the answers

    What is the purpose of making a substitution when solving quadratic equations by substitution?

    <p>To simplify the process by identifying a repeated expression</p> Signup and view all the answers

    What is the formula used to find the roots of a quadratic equation?

    <p>x = -b Ā± āˆš(bĀ² - 4ac) / 2a</p> Signup and view all the answers

    What is the last step in finding the quadratic equation given the roots?

    <p>Expanding the brackets to get the quadratic equation in the standard form</p> Signup and view all the answers

    What is the nature of the roots of a quadratic equation if the discriminant Ī” is less than 0?

    <p>Two complex conjugate roots</p> Signup and view all the answers

    What is the purpose of verifying restrictions when solving a quadratic equation by substitution?

    <p>To ensure that the solutions are valid</p> Signup and view all the answers

    What is the value of $(a^2)^{-3/2}$ in terms of $a$?

    <p>$1/a^{3/2}$</p> Signup and view all the answers

    If $P(t) = P_0 imes (1 + r)^t$, what is the value of $r$ when $P(2) = 2P_0$?

    <p>$0.5$</p> Signup and view all the answers

    What is the condition for a quadratic equation to have exactly one real root?

    <p>Ī” = 0</p> Signup and view all the answers

    What is the value of $(a^{1/2} + b^{1/2})^2$ in terms of $a$ and $b$?

    <p>$a + b + 2\sqrt{ab}$</p> Signup and view all the answers

    What is the formula used to find the discriminant Ī” of a quadratic equation in standard form ax^2 + bx + c = 0?

    <p>Ī” = bĀ² - 4ac</p> Signup and view all the answers

    If $\sqrt{x} = 2$, what is the value of $x$?

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

    What is the first step in solving a quadratic equation by substitution?

    <p>Determine the restrictions for the variable x</p> Signup and view all the answers

    What is the purpose of the discriminant in a quadratic equation?

    <p>To determine the nature of the roots</p> Signup and view all the answers

    What is the value of $a^{-2/3} imes a^{1/2}$ in terms of $a$?

    <p>$a^{-1/6}$</p> Signup and view all the answers

    If $P(t) = P_0 imes (1 + r)^t$ and $P(1) = 1.2P_0$, what is the value of $r$?

    <p>$0.2$</p> Signup and view all the answers

    What is the purpose of converting rational exponents to radical form?

    <p>To enable the application of exponent rules</p> Signup and view all the answers

    What is the value of $(a^2 + b^2)^{-1/2}$ in terms of $a$ and $b$?

    <p>$1/\sqrt{a^2 + b^2}$</p> Signup and view all the answers

    If $x^2 = 4$, what is the value of $x$?

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

    When using the quadratic formula, what is the significance of the expression b^2 - 4ac?

    <p>It determines the number of solutions to the equation</p> Signup and view all the answers

    What is the value of $a^{3/2} imes a^{-1/2}$ in terms of $a$?

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

    What is the advantage of using the completing the square method to solve quadratic equations?

    <p>It provides a more intuitive understanding of the equation's structure</p> Signup and view all the answers

    What is the purpose of rationalizing the denominator of a surd expression?

    <p>To ensure the expression is in its simplest form</p> Signup and view all the answers

    If $P(t) = P_0 imes (1 + r)^t$ and $P(3) = 2.5P_0$, what is the value of $r$?

    <p>$0.25$</p> Signup and view all the answers

    When solving exponential growth or decay problems, what is the importance of identifying the initial amount, growth rate, and time period?

    <p>It is necessary for finding the final amount</p> Signup and view all the answers

    What is the definition of an irrational number?

    <p>A number that cannot be expressed as a finite decimal</p> Signup and view all the answers

    When solving quadratic equations, what is the purpose of checking solutions?

    <p>To ensure the solution satisfies the original equation</p> Signup and view all the answers

    What is the formula for finding the nth root of a number?

    <p>a^(1/n) = nth root of a</p> Signup and view all the answers

    What is the purpose of converting percentages to decimal form when solving exponential growth or decay problems?

    <p>To enable the application of the exponential formula</p> Signup and view all the answers

    When solving quadratic equations, what is the significance of the expression a^2 + b^2 = c^2?

    <p>It is a Pythagorean identity with no relevance to quadratic equations</p> Signup and view all the answers

    What is the primary purpose of assigning variables to unknown quantities in a word problem?

    <p>To translate the words into algebraic expressions</p> Signup and view all the answers

    Which of the following is a common application of quadratic sequences in real-life scenarios?

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

    What is the effect of a positive value of q on the graph of a quadratic function of the form y = ax^2 + q?

    <p>The graph shifts vertically upwards</p> Signup and view all the answers

    Which step is essential in solving a system of equations using the substitution method?

    <p>Solving for one variable in terms of the other</p> Signup and view all the answers

    What is the purpose of solving simultaneous equations in problem-solving strategies?

    <p>To find the values of the variables</p> Signup and view all the answers

    Which of the following is a characteristic of a quadratic sequence?

    <p>The second difference between consecutive terms is constant</p> Signup and view all the answers

    What is the last step in solving a quadratic equation using the substitution method?

    <p>Using the solution to find the value of the other variable</p> Signup and view all the answers

    Which of the following is a type of problem that requires the use of mathematical language to describe real-life contexts?

    <p>Word problem</p> Signup and view all the answers

    What is the primary purpose of using a graphical approach in solving quadratic inequalities?

    <p>To visualize the solution set</p> Signup and view all the answers

    What is the purpose of solving systems of equations in problem-solving strategies?

    <p>To find the values of the variables</p> Signup and view all the answers

    What is the vertical asymptote of the hyperbolic function y = a/(x + p) + q?

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

    What is the effect of a change in a on the shape of the hyperbolic function y = a/(x + p) + q?

    <p>A change in the shape of the graph in quadrants</p> Signup and view all the answers

    What is the domain of the function y = a/(x + p) + q?

    <p>{x : x āˆˆ ā„, x ā‰  -p}</p> Signup and view all the answers

    What is the average gradient of a curve at point P when h is not equal to 0?

    <p>2a + h</p> Signup and view all the answers

    What is the effect of a negative value of a on the graph of y = a(x + p)^2 + q?

    <p>The graph is a 'frown' and has a maximum turning point.</p> Signup and view all the answers

    What is the range of the function y = a/(x + p) + q?

    <p>{y : y āˆˆ ā„, y ā‰  q}</p> Signup and view all the answers

    What is the equation of the axis of symmetry for f(x) = a(x + p)^2 + q?

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

    What is the effect of a change in p on the graph of y = a/(x + p) + q?

    <p>A horizontal shift</p> Signup and view all the answers

    What is the axis of symmetry of the hyperbola y = a/(x + p) + q?

    <p>The line x = -p</p> Signup and view all the answers

    What is the effect of a horizontal shift on the graph of y = a(x + p)^2 + q?

    <p>It changes the turning point.</p> Signup and view all the answers

    What is the formula for the x-intercept of the hyperbolic function y = a/(x + p) + q?

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

    What is the range of the function f(x) = a(x + p)^2 + q when a > 0?

    <p>{y : y ā‰„ q, y āˆˆ ā„}</p> Signup and view all the answers

    What is the formula for finding the average gradient of a curve between two points?

    <p>Gradient = (y_A - y_C) / (x_A - x_C)</p> Signup and view all the answers

    What is the effect of a change in q on the graph of y = a/(x + p) + q?

    <p>A vertical shift</p> Signup and view all the answers

    What is the formula for the y-intercept of the hyperbolic function y = a/(x + p) + q?

    <p>Set x = 0</p> Signup and view all the answers

    What is the effect of a vertical shift on the graph of y = a(x + p)^2 + q?

    <p>It changes the y-intercept.</p> Signup and view all the answers

    What is the turning point of the function f(x) = a(x + p)^2 + q?

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

    What is the domain of the function f(x) = a(x + p)^2 + q?

    <p>{x : x āˆˆ ā„}</p> Signup and view all the answers

    What is the effect of a change in p on the graph of y = a(x + p)^2 + q?

    <p>It shifts the graph horizontally.</p> Signup and view all the answers

    What is the formula for finding the x-intercept(s) of the function f(x) = a(x + p)^2 + q?

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

    What is the effect of a change in p on the graph of y = ab^(x+p) + q?

    <p>A horizontal shift to the left by p units</p> Signup and view all the answers

    What is the range of the function y = ab^(x+p) + q when a > 0?

    <p>{y : y &gt; q, y āˆˆ ā„}</p> Signup and view all the answers

    What is the formula for the depreciated value using compound depreciation?

    <p>A = P(1 - i)^n</p> Signup and view all the answers

    What is the effect of a change in a on the graph of y = ab^(x+p) + q?

    <p>A change in the position of the horizontal asymptote</p> Signup and view all the answers

    What is the purpose of using timelines in compounding?

    <p>To visualize the compounding periods</p> Signup and view all the answers

    What is the formula for the book value using simple depreciation?

    <p>A = P(1 - in)</p> Signup and view all the answers

    What is the effect of a change in q on the graph of y = ab^(x+p) + q?

    <p>A vertical shift</p> Signup and view all the answers

    What is the key characteristic of compound depreciation?

    <p>The depreciation amount decreases each year</p> Signup and view all the answers

    What is the purpose of finding the depreciation rate (i) in depreciation problems?

    <p>To solve for the depreciation rate in simple or compound decay</p> Signup and view all the answers

    What is the domain of the function y = ab^(x+p) + q?

    <p>{x : x āˆˆ ā„}</p> Signup and view all the answers

    What is the probability of the event A occurring given that event B has occurred, if P(A) = 0.3, P(B) = 0.4, and P(A and B) = 0.2?

    <p>0.67</p> Signup and view all the answers

    When calculating the accumulated value, what is the correct formula to use for each segment?

    <p>A = P(1 + i)^n</p> Signup and view all the answers

    In a tree diagram, what is the probability of a path that consists of two events, A and B, with probabilities 0.6 and 0.7, respectively?

    <p>0.42</p> Signup and view all the answers

    What is the formula for the probability of three events, A, B, and C, occurring simultaneously?

    <p>P(A) + P(B) + P(C) - P(A and B) - P(A and C) - P(B and C) + P(A and B and C)</p> Signup and view all the answers

    What is the primary purpose of breaking down periods when calculating compound interest?

    <p>To adjust for changes in interest rates or deposits/withdrawals</p> Signup and view all the answers

    What is the correct formula for calculating the effective interest rate?

    <p>1 + i_effective = (1 + i_nominal/m)^m</p> Signup and view all the answers

    What is the condition for two events, A and B, to be independent?

    <p>P(A and B) = P(A) Ɨ P(B)</p> Signup and view all the answers

    When events are dependent, what is the correct formula for calculating the probability of both events occurring?

    <p>P(A and B) = P(A) Ɨ P(B | A)</p> Signup and view all the answers

    What is the purpose of a contingency table in probability?

    <p>To test for independence between two events</p> Signup and view all the answers

    What is the formula for the probability of an event A occurring, given that event B has occurred, if the events are dependent?

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

    What is the correct formula for calculating the probability of the union of two mutually exclusive events?

    <p>P(A or B) = P(A) + P(B)</p> Signup and view all the answers

    What is the probability of a specific path in a tree diagram, if the probabilities of the individual events are 0.4, 0.5, and 0.6?

    <p>0.12</p> Signup and view all the answers

    What is the purpose of using Venn diagrams in probability theory?

    <p>To visualize the relationships between events</p> Signup and view all the answers

    When calculating the accumulated value, what is the correct formula to use for the initial period?

    <p>A = P(1 + i)^n</p> Signup and view all the answers

    What is the formula for the probability of two events, A and B, occurring simultaneously, if they are independent?

    <p>P(A) Ɨ P(B)</p> Signup and view all the answers

    What is the purpose of a tree diagram in probability?

    <p>To organize and visualize the different possible outcomes of a sequence of events</p> Signup and view all the answers

    What is the primary purpose of calculating the accumulated value at the end of each period?

    <p>To determine the total accumulated value at the end of the investment or loan term</p> Signup and view all the answers

    What is the formula for the probability of an event A occurring, given that event B has not occurred, if P(A) = 0.3, P(B) = 0.4, and P(A and B) = 0.2?

    <p>0.43</p> Signup and view all the answers

    What is the correct formula for calculating the probability of the intersection of two independent events?

    <p>P(A and B) = P(A) Ɨ P(B)</p> Signup and view all the answers

    What is the correct formula for calculating the conditional probability of event A given event B?

    <p>P(A | B) = P(A and B) / P(B)</p> Signup and view all the answers

    What is the nature of the roots of a quadratic equation if the discriminant Ī” is less than 0?

    <p>Non-real</p> Signup and view all the answers

    What is the purpose of completing a table of signs when solving quadratic inequalities?

    <p>To determine where the quadratic expression is positive or negative</p> Signup and view all the answers

    What is the condition for a quadratic equation to have two distinct real roots?

    <p>Ī” &gt; 0</p> Signup and view all the answers

    What is the advantage of using a graphical approach when solving quadratic inequalities?

    <p>It helps to visualize the solution</p> Signup and view all the answers

    What is the purpose of determining the critical values when solving a quadratic inequality?

    <p>To determine where the quadratic expression equals zero</p> Signup and view all the answers

    What is the formula for the discriminant Ī” of a quadratic equation in standard form ax^2 + bx + c = 0?

    <p>b^2 - 4ac</p> Signup and view all the answers

    What is the purpose of solving quadratic inequalities?

    <p>To determine the regions where the quadratic expression is positive or negative</p> Signup and view all the answers

    What is the condition for a quadratic equation to have exactly one real root?

    <p>Ī” = 0</p> Signup and view all the answers

    What is the final step when solving a quadratic inequality?

    <p>To write the final solution and represent it on a number line</p> Signup and view all the answers

    What is the purpose of the sign analysis in quadratic inequalities?

    <p>To determine where the quadratic expression is positive or negative</p> Signup and view all the answers

    What is the result of raising both sides of the equation āˆšx = 2 to the power 2?

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

    What is the exponential form of the surd āˆš(a^3)?

    <p>a^(3/2)</p> Signup and view all the answers

    In an exponential growth model, what happens to the quantity over time?

    <p>It increases by a fixed percentage each period</p> Signup and view all the answers

    What is the purpose of checking solutions when solving surd equations?

    <p>To verify the solution is correct</p> Signup and view all the answers

    What is the rule for raising a power to another power?

    <p>(a^m)^n = a^(m*n)</p> Signup and view all the answers

    What is the expression for a^(-m) in terms of positive exponents?

    <p>1 / a^m</p> Signup and view all the answers

    What is the purpose of rationalizing denominators?

    <p>To eliminate the surd from the denominator</p> Signup and view all the answers

    What is the formula for simplifying the expression a^(m/n)?

    <p>āˆš[a^(m/n)]</p> Signup and view all the answers

    What is the value of a^0 when a is not equal to 0?

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

    What is the purpose of converting percentages to decimal form?

    <p>To make calculations easier</p> Signup and view all the answers

    What is the value of x in the equation $x^{rac{2}{3}} = 25$?

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

    Simplify the expression $\sqrt[4]{a^{12}}$:

    <p>$a^{3/4}$</p> Signup and view all the answers

    Rationalize the denominator of the expression $rac{2}{\sqrt[3]{a}}$:

    <p>$rac{2\sqrt[3]{a^2}}{a}$</p> Signup and view all the answers

    What is the purpose of rationalizing denominators in exponential equations?

    <p>To eliminate irrational numbers</p> Signup and view all the answers

    What is the formula for exponential growth or decay when the initial amount is Pā‚€, the growth rate is r, and the time period is t?

    <p>P = Pā‚€e^(rt)</p> Signup and view all the answers

    What is the value of $a$ in the equation $a^{-2/3} = rac{1}{4}$?

    <p>16</p> Signup and view all the answers

    Simplify the expression $\sqrt[5]{a^3b^5}$:

    <p>$a^{1/5}b^{5/5}$</p> Signup and view all the answers

    What is the result of completing the square for the quadratic equation ax^2 + bx + c = 0?

    <p>(x + b/2a)^2 = b^2 - 4ac/4a^2</p> Signup and view all the answers

    What is the value of $x$ in the equation $x^{rac{3}{2}} = 27$?

    <p>9</p> Signup and view all the answers

    What is the value of a^(m/n) in terms of roots?

    <p>a^(m/n) = (āˆša)^m/ (āˆša)^n</p> Signup and view all the answers

    If a quadratic equation has two distinct real roots, what can be said about the discriminant?

    <p>It is greater than 0</p> Signup and view all the answers

    What is the purpose of making a substitution when solving quadratic equations by substitution?