1.   The math scores, x, and chemistry scores, y, for six students are given in the table. Use a graphing calculator to find the Pearson product-moment correlation.
   
    A. about 0.74 B. about 0.68
    C. about 0.71 D. about 0.65
    Hint

  2.   Which is the graph of the inequality y |x - 3|?
    A. B.
    C. D.
    Hint

  3.   The graph |y| = 4 - |2x| is symmetric with respect to __________.
    A. both the x-axis and
the y-axis
B. the x-axis
    C. the y-axis D. neither the x-axis nor
the y-axis
    Hint

  4.   A family has a monthly net pay N which is 70% of their gross monthly pay G. They decided to subtract their monthly food allowance of $350 from their monthly net pay and invest 5% of the remainder. Write an equation for the investment each month I, given the above restrictions.
    A. I = 0.05(0.7G - 350) B. I = 0.95(0.7G - 350)
    C. I = 0.95(0.3G - 350) D. I = 0.05(0.3G - 350)
    Hint

  5.   If y varies jointly as the square of x and the cube of z and y = 9 when x = 3 and z = 4, find y when x = 8 and z = 5.
    A. 40 B. 45
    C. 125 D. 100
    Hint

  6.   Determine the zeros of the function y = x3 + 2x2 - 5x - 6.
    A. -3, -1, 4 B. -1, 2, 3
    C. -3, 2, 0 D. -3, -1, 2
    Hint

  7.   Solve .
    A. 3 B. 2
    C. 0 D. 1
    Hint

  8.   Write north latitude 44° 10' 26" as a decimal rounded to the
nearest thousandth.
    A. 44.174° B. 44.172°
    C. 44.177° D. 44.173°
    Hint

  9.   Express as a trigonometric function of an angle in Quadrant I.
    A. B.
    C. D.
    Hint

  10.   Write parametric equations of y = -2x + 5.
    A. x = t and y = 2t - 5 B. x = -2t + 5 and y = t
    C. x = t and y = -2t + 5 D. x = t and y = 2x - 5
    Hint

  11.   Convert log5 145 to a natural logarithm.
    A. B.
    C. ln 145 - ln 5 D. ln 5 - ln 145
    Hint

  12.   Write as a fraction.
    A. B.
    C. D.
    Hint

  13.   Write the equation of the line that is parallel to 2x - 3y - 15 = 0 and that passes through the point (3,4).
    A. 2x - 3y + 6 = 0 B. 2x + 3y + 6 = 0
    C. 2x - 2y + 6 = 0 D. 2x + 5 - 3 = 0
    Hint

  14.   The image of after Rot180 Ry-axis is the same as which other reflection, if the vertices are A(1,1), B(2,6), C(6,4)?
    A. none of these B. reflection over the line y = x
    C. reflection over the y-axis D. reflection over the x-axis
    Hint

  15.   Use matrices to determine the coordinates of the image of
with vertices A(-3,4), B(-5,2) and C(-6,5) once it is rotated 90.
    A. A'(-4,-3), B(-2,-5) and C'(-5,-6)
    B. A'(3,4), B(5,2) and C'(6,5)
    C. A'(-3,-4), B(-5,-2) and C'(-6,-5)
    D. A'(3,-4), B(5,-2) and C'(6,-5)
    Hint

  16.   Determine the slant asymptote for f(x) = .
    A. y = x + 3 B. y = 4
    C. y = x + 4 D. y = -x + 3
    Hint

  17.   Solve + 1 = 2 sin x for all real values of x.
    A. + 2k B. k
    C. + k D. + 2k
    Hint

  18.   Identify the graph of the equation 4x2 +3xy + 6y2 - 6 = 0 then find to the nearest degree.
    A. parabola; B. hyperbola; - 28°
    C. circle; -56° D. ellipse; - 28°
    Hint

  19.   Find the sum of the first seven terms of the geometric series Round to the nearest hundredth.
    A. 11.56 B. 3.24
    C. 18 D. 17.33
    Hint

  20.   Write a sequence that has two geometric means between -6 and
    A.
    B.
    C.
    D.
    Hint