1.   Write a polynomial equation of least degree with roots -1, 2i, and -2i.
    A. x3 - x2 + 4x + 4 = 0 B. x3 + x2 - 4x + 4 = 0
    C. 3x + x2 + 4x - 4 = 0 D. x3 + x2 + 4x + 4 = 0
    Hint

  2.   In the equation x3 + x2 + 4x + 4 = 0, how many times does the graph of the related function cross the x-axis?
    A. 3 B. 2
    C. 0 D. 1
    Hint

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

  4.   Find the discriminant of x2 - 2x + 20 = 0.
    A. 76 B. 72
    C. -76 D. -72
    Hint

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

  6.   If you divide a polynomial by the factor x + 6 and a remainder of zero results, which conclusion is true?
    A. x - 6 is a factor of the polynomial. B. x + 6 is a factor of the polynomial.
    C. x + 6 is not a factor of the polynomial. D. x - 6 is not a factor of the polynomial.
    Hint

  7.   Find the roots of x3 + 2x + 3 = 0.
    A. B. -1, 2
    C. D. 1, -2
    Hint

  8.   Find the rational zeros of the equation 2x4 - x3 - 21x2 + 9x + 27 = 0.
    A. 3, -3, -1, B. 3, 1, -1,
    C. 3, 1, -1, D. 3, -3, -1,
    Hint

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

  10.   Determine the number of complex zeros of the function
f(x) = x5 - 4x2 + 2x - 1.
    A. 5 B. 4
    C. 2 D. 3
    Hint

  11.   Solve = 3.
    A. -1 B. 2, 3
    C. 3 D. 2
    Hint

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

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

  14.   Solve .
    A. -6 B. -10
    C. 4 D. 8
    Hint

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

  16.   Use the function of best fit, y = 0.9x + 1.3, to predict y when x = 5.
    A. 3.2 B. 5.8
    C. 2.3 D. 6.7
    Hint



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