1.   What is the graph of ?
    A. B.
    C. D.
    Hint

  2.   The graph of has a hole at which point?
    A. (4, 8) B. (-4, -8)
    C. (-4, 8) D. (4, -8)
    Hint

  3.   What is the equation of the vertical asymptote of the function ?
    A. There is a hole at 4, not a vertical asymptote. B. x = –4
    C. x = 4 D. x = 5
    Hint

  4.   The function has which of the following properties?
    A. f(x) = 1 for all values of x. B. f(x) = 0 for all values of x.
    C. It has a hole at (3, 1). D. It has a hole at (3, 0).
    Hint

  5.   In a certain job, the function represents the amount of hours worked x in relation to the amount of stress f(x) felt by the workers. For what values of x does this graph have meaning?
    A. for and x < 40 B. for
    C. for and x > 40, because stress is a non-negative quantity D. for all values of x
    Hint



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