1.   Use the quadratic formula to solve 6x2 - x - 1 = 0.
    A. B.
    C. D.
    Hint

  2.   Use the quadratic formula to solve 2x2 + 7x + 4 = 0. Approximate the solutions to the nearest hundredth.
    A. -3.35, -0.15 B. 1.28, 3.66
    C. -5.56, -1.44 D. -2.78, -0.72
    Hint

  3.   Use the quadratic formula to solve 3y2 + 2 = 8y. Approximate the solutions to the nearest hundredth.
    A. 0.28, 2.39 B. 0.56, 4.77
    C. -0.64, 1.32 D. 0.43, 2.87
    Hint

  4.   Which method of solving quadratic equations is best suited for the equation x2 – 18x = 0
    A. graphing B. completing the square
    C. quadratic formula D. factoring
    Hint

  5.   Which of the following equations will have exactly 1 real root?
    A. 4x2 – 8x + 4 B. 9x2 + 12x – 4
    C. x2 – 6x – 9 D. 2x2 + 5x – 16
    Hint



Glencoe
The McGraw-Hill Companies