1.   Ten years ago, Mary invested $2500. Four years later, she invested $3000. Set up an equation that determines the current value of the two investments T(x) if each earns 10% annual interest per year.
    A. T(x) = 2500(1.1)10 +
3000(1.1)4
B. T(x) = 3000(1.0)10 +
2500(1.1)6
    C. T(x) = 2500(1.1)10 +
3000(1.1)6
D. T(x) = 3000(1.0)10 +
2500(1.1)4
    Hint

  2.   Find the roots of the equation x4 - 3x2 - 4 = 0.
    A. 2i, -2i, 1, -1 B. i, -i, 1, -1
    C. i, -i, 2, -2 D. 2i, -2i, 2, -2
    Hint

  3.   The roots of the equation x2 - 8x - 20 = 0 are ____.
    A. -2 and 10 B. 2 and 10
    C. -2 and -10 D. 2 and -10
    Hint

  4.   The equation x2 + x - 1 = 0 cannot be solved by ____.
    A. graphing B. using the quadratic formula
    C. completing the square D. factoring
    Hint

  5.   Divide x4 + 2x2 - 1 by x - 1 using synthetic division. The result of synthetic division is ____.
    A. 1 3 1 3 | 2 B. 1 3 1 3 | -2
    C. 1 1 3 3 | 2 D. 1 1 3 3 | -2
    Hint

  6.   Find the value of k so that the remainder of (x3 - 3x2 + kx - 6) (x + 2) is 0.
    A. k = 6 B. k = 11
    C. k = -11 D. k = -13
    Hint

  7.   List the possible rational roots of 3x3 + 5x2 - 2x + 1 = 0.
    A. 1, B. ,
    C. , D. 1,
    Hint

  8.   Find the number of positive real zeros for
f(x) = 3x5 + 2x3 + x2 + 7x - 1 = 0.
    A. 4 or 2 positive real zeros B. no positive real zeros
    C. 4 or 2 or 0 positive real zeros D. exactly 1 positive real zero
    Hint

  9.   Approximate the real zero(s) of f(x) = x3 - 2x2 + 5x - 5 to the nearest tenth.
    A. 1.4 B. 1.6
    C. 1.4, 2.1, and 3.2 D. 1.2
    Hint

  10.   Approximate the real zeros of the function f(x) = 2x2 + 4x + 1 to the nearest tenth.
    A. -1.6 and -0.2 B. -1.8 and -0.2
    C. -1.8 and -0.4 D. -1.7 and -0.3
    Hint

  11.   Solve + < .
    A. a < 0 or a > 5 B. 0 < a < 5
    C. a < 0 or 0 < a < 5 D. a > 0 or 0 < a < 5
    Hint

  12.   Solve - x + 1 = 0.
    A. -1, -2 B. -1, 2
    C. 1, 2 D. 1, -2
    Hint

  13.   Solve .
    A. 5 B. 2
    C. 5, 1 D. 5, 2
    Hint

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

  15.   How many direction changes are there in the graph of a linear equation?
    A. 3 B. 2
    C. 1 D. 0
    Hint

  16.   How many direction changes are there in the graph of a quartic function?
    A. 2 B. 3
    C. 0 D. 1
    Hint