1.   Evaluate .
    A. -2 B. 2
    C. 0 D. does not exist
    Hint

  2.   Evaluate .
    A. -4 B. 5
    C. 0 D. does not exist
    Hint

  3.   What is the limit of the function as x approaches 0?
    A. 0 B.
    C. 1 D.
    Hint

  4.   Consider the graph of the function y = f(x) shown below. Which statement is true?
   
    A. none of these are correct
    B. At x = 3, f(x) = -2
    C. because when x = 3, f(x) = -2, and as x approaches 3, f(x) approaches -2.
    D. As x approaches 3, f(x) approaches -2. Therefore, .
    Hint

  5.   Evaluate .
    A. 19 B. The limit does not exist.
    C. -4 D. -5
    Hint