Gr 10 Math Ch 5: Interpretation of Graphs
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Questions and Answers

What effect does the parameter 'a' have on the graph of a parabola?

  • It has no effect on the graph.
  • It determines the shape of the x-intercepts.
  • It determines the vertical shift of the parabola.
  • It determines the direction and width of the parabola. (correct)
  • When calculating the y-intercept of a function, which value should be set to find it?

  • Set both $x$ and $y$ to zero.
  • Set $y = 0$ to find the y-intercept.
  • Set $x = 0$ to find the y-intercept. (correct)
  • Set the parameter 'a' to zero.
  • Which of the following statements about hyperbolas is true?

  • Hyperbolas always intersect the y-axis.
  • The shape of the hyperbola is unaffected by 'a'.
  • The parameter 'a' determines the direction and shape of the hyperbola. (correct)
  • The equation has no vertical shift component.
  • For trigonometric functions, what does the parameter 'q' do?

    <p>It results in a vertical shift of the function.</p> Signup and view all the answers

    Which method is used to find the values of 'a' and 'q' when given points?

    <p>Substitute the points into the equations and solve simultaneously.</p> Signup and view all the answers

    What characterizes the asymptotes of hyperbolas?

    <p>Asymptotes are determined by setting the denominator of the function to zero.</p> Signup and view all the answers

    What is the first step in determining the equation of a parabola?

    <p>Examine the sketch to identify direction and vertical shifts</p> Signup and view all the answers

    How can you determine the constant q in the equation of a parabola?

    <p>Using the y-intercept point (0; y)</p> Signup and view all the answers

    What is necessary to solve for a in the equation of a hyperbola?

    <p>Another specific point on the hyperbola</p> Signup and view all the answers

    What information can be found by calculating the intercepts in a graph?

    <p>The coordinates where the graph intersects the axes</p> Signup and view all the answers

    To interpret trigonometric graphs, what aspect should be identified first?

    <p>The type of trigonometric graph and vertical shifts</p> Signup and view all the answers

    How are distances calculated when points are aligned vertically or horizontally?

    <p>By simple subtraction of the coordinates</p> Signup and view all the answers

    In the equation of a hyperbola, what determines the sign of a?

    <p>The quadrants where the curves are located</p> Signup and view all the answers

    Which formula explains how to find points of intersection for two graphs?

    <p>Equate the expressions of the two graphs</p> Signup and view all the answers

    What effect does the parameter 'q' have on the graph of a hyperbola?

    <p>It determines the vertical shift of the hyperbola.</p> Signup and view all the answers

    Which of the following best describes the domain of a hyperbolic function?

    <p>All real numbers except where the denominator is zero.</p> Signup and view all the answers

    When evaluating the vertical shift of a trigonometric function like sine, which parameter is responsible?

    <p>The constant term 'q'.</p> Signup and view all the answers

    What is the characteristic shape of a parabola defined by the equation $y = ax^2 + q$ when 'a' is negative?

    <p>It opens downwards.</p> Signup and view all the answers

    How do you identify the y-intercept of a function given by $y = ax^2 + q$?

    <p>Substitute 0 for $x$ into the equation.</p> Signup and view all the answers

    In the context of functions, what role do asymptotes play for hyperbolas and tangent functions?

    <p>They act as guidelines that the function approaches but never touches.</p> Signup and view all the answers

    What is the method to find the y-intercept for a parabola?

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

    Which of the following describes the first step in determining the equation of a hyperbola?

    <p>Identify the quadrants where the curves lie</p> Signup and view all the answers

    When determining the equation of a trigonometric function, what is the significance of the parameter 'q'?

    <p>It represents the vertical shift of the graph</p> Signup and view all the answers

    What method is used to solve for 'a' and 'q' in the hyperbola equation?

    <p>Solve simultaneously using substitution</p> Signup and view all the answers

    Which of the following is true about calculating intercepts for graphs?

    <p>x-intercepts are found by setting y to 0</p> Signup and view all the answers

    What is the role of the sketch in determining the equation of a parabola?

    <p>It helps identify the opening direction and vertical shift</p> Signup and view all the answers

    In calculating points of intersection between two graphs, what must be done?

    <p>Equate the expressions and solve for both x and y</p> Signup and view all the answers

    When examining a trigonometric graph, what is crucial to observe first?

    <p>The shift and type of graph (sine or cosine)</p> Signup and view all the answers

    What effect does changing the value of 'a' in the equation of a hyperbola, $y = \frac{a}{x} + q$, have on its graph?

    <p>It alters the direction and shape of the hyperbola.</p> Signup and view all the answers

    How can the range of a trigonometric function described by $y = a \sin \theta + q$ be defined when 'a' is negative?

    <p>All values above q up to q - |a|.</p> Signup and view all the answers

    In the context of graphing parabolas, how does the value of 'q' impact the graph represented by $y = ax^2 + q$?

    <p>It causes a vertical shift of the entire parabola.</p> Signup and view all the answers

    Which statement accurately describes the domain of the function $y = \frac{a}{x} + q$?

    <p>It includes all real numbers except for x = 0.</p> Signup and view all the answers

    What is the significance of asymptotes in the graph of hyperbolic functions?

    <p>They define boundaries that the graph approaches but never crosses.</p> Signup and view all the answers

    When solving simultaneous equations to find values of 'a' and 'q', which method is primarily used?

    <p>Substituting values from one equation into the other.</p> Signup and view all the answers

    Which of the following correctly describes the steps to determine the equation of a parabola?

    <p>Examine the sketch, determine q using the y-intercept, then use another point to find a.</p> Signup and view all the answers

    What is the best method to find the values of a and q in the hyperbola equation?

    <p>Substitute known points into the hyperbola equation and solve the resulting equations simultaneously.</p> Signup and view all the answers

    When calculating points of intersection between two graphs, what is the initial step?

    <p>Equate the expressions of the two graphs and solve for x and y.</p> Signup and view all the answers

    Which of the following best explains how to calculate the y-intercept of a function?

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

    What strategy is used to determine the sign of 'a' in the equation of a hyperbola?

    <p>Identify the quadrants where the curves reside.</p> Signup and view all the answers

    Which of the following describes the relationship between the parameters 'a' and 'q' in trigonometric functions?

    <p>'a' indicates the amplitude, whereas 'q' denotes vertical shifts.</p> Signup and view all the answers

    What is the significance of the y-intercept in determining the equation of a parabola?

    <p>It provides the value of q directly.</p> Signup and view all the answers

    To accurately portray a trigonometric function's graph, what is the most critical initial observation?

    <p>The vertical shifts indicated by q.</p> Signup and view all the answers

    What effect does the parameter 'a' have on the graph of the sine function given by the equation $y = a \sin \theta + q$?

    <p>It affects the amplitude and reflection.</p> Signup and view all the answers

    In the equation of a hyperbola $y = \frac{a}{x} + q$, how does changing the value of 'q' influence the graph?

    <p>It affects the vertical shift of the graph.</p> Signup and view all the answers

    When calculating the domain of the function $y = \frac{a}{x} + q$, which statement is true?

    <p>The domain includes all real numbers except for zero.</p> Signup and view all the answers

    What is the primary role of asymptotes in the graph of a hyperbolic function?

    <p>They help identify the limits of the function as it approaches infinity.</p> Signup and view all the answers

    In the context of trigonometric functions, how does the parameter 'a' in the equation $y = a \cos \theta + q$ primarily affect the graph?

    <p>It alters the amplitude of the cosine wave.</p> Signup and view all the answers

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