1.   Choose the relation that is a function.
    A. B.
    C. D.
    Hint

  2.   Which graph represents a function?
    A. B.
    C. D.
    Hint

  3.   If f(x) = 2x - 2, find 2[f(3)].
    A. 10 B. 4
    C. 8 D. 2
    Hint

  4.   Find f(x – 7) if f(x) = -4x – 10.
    A. -4x – 17 B. 4x + 3
    C. 4x – 38 D. -4x + 18
    Hint

  5.   Find h(-2.5) if h(z) = z² + 3.5z – 2.75.
    A. 0.25 B. -5.25
    C. 12.25 D. -17.75
    Hint



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