1.   Which statement is true about the graph shown below?
   
    A. The relation is not a function. B. The range is {-3, -2, 0, 1}.
    C. The domain is {-3, 2, 4}. D. The relation is a function.
    Hint

  2.   Determine the slope of the line that passes through the points at
(1, 5) and (-4, 0).
    A. 0 B. 1
    C. -1 D.
    Hint

  3.   What is the first step in solving the matrix equation
    A. Find the inverse of
    B. Multiply each side of the matrix equation by
    C. Multiply each side of the matrix equation by the identity matrix.
    D. Divide each side of the matrix equation by
    Hint

  4.   The graph of the equation -x2 + 4y2 - 10x - 8y - 29 = 0 is a(n) _____.
    A. ellipse B. parabola
    C. circle D. hyperbola
    Hint

  5.   Find the vertex of the graph of   f(x) = x2 + 4x - 5.
    A. (-2, 9) B. (-2, -9)
    C. (0, -5) D. (2, 7)
    Hint

  6.   The curve shown is________.
   
    A. positively skewed B. not skewed
    C. negatively skewed D. normal
    Hint

  7.   Radioactivity The half-life of uranium-232 is 72 years. Find the approximate value of k in the formula y = nekt for uranium-232. Assume t is in years.
    A. -0.0048 B. 0.0012
    C. -0.0096 D. -0.0024
    Hint

  8.   The length of the arc of the swing of a pendulum is 120 mm. If the length of the arc of each succeeding swing is decreased by 10%, find the total distance the pendulum travels before it stops.
    A. 1200 mm B. 800 mm
    C. 1000 mm D. 90 mm
    Hint

  9.   Write y = cos 60° in the form of an inverse function.
    A. 60° = Arccos y B. 60° = sin y
    C. y = Arccos 60° D. 60° = cos y
    Hint

  10.   Solve x + 7 < 5 or x + 6 > 9.
    A. {x | -2 > x > 3} B. {x | -2 < x < 3}
    C. {x | x < -2 or x > 3} D. {x | x > -2 or x < 3}
    Hint

  11.   Given that and use the fact that to find AB + AC.
    A. B.
    C. D.
    Hint

  12.   Suppose has vertices A(3, 4), B(-2, 1) and C(2, –3). Dilate so that its perimeter is one-fourth the original perimeter. What are the coordinates of the vertices of
    A.
    B.
    C.
    D.
    Hint

  13.   Which method of finding solutions would work best to find the solutions to the system 12.4x – 3.66y = 12.19, 3.9x + 6.17y = 19.28, and why?
    A. Cramer's Rule, because none of the other methods will correctly solve the problem
    B. Cramer's Rule, because there are fewer calculations.
    C. elimination, because 6.17 is a factor of 3.66
    D. elimination, because Cramer's Rule doesn't apply to this problem
    Hint

  14.   Which of the following is a matrix equation for the system 5x – 3y =11, –3x + 2y = 7?
    A.
    B.
    C.
    D.
    Hint

  15.   Solve the system of equations 7x – 14y =4, 3x – 6y =17.
    A. (3, –2) B. infinite solutions
    C. (2, 1) D. no unique solution
    Hint

  16.   What is the negative solution of the equation ?
    A. –5 B. 3
    C. D. –3
    Hint

  17.   When is it true that ?
    A. B. all real numbers
    C. -1 D.
    Hint

  18.   If a graph represents an odd-degree polynomial function, what must be true?
    A. It must have at least three roots. B. As ,
    C. It may not have any real roots. D. It must pass through the x-axis.
    Hint

  19.   Gail and Gayla throw balls into the air. The equation represents Gail's throw, where x is time in seconds, and y is height. Gayla's throw is represented by When are the balls at the same height?
    A. at 5 seconds B. at 7 seconds
    C. at –1 seconds D. never
    Hint

  20.   Evaluate
    A. 1 B. 252
    C. 504 D. 126
    Hint



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