1.   Which is the graph of

?

    A. B.
    C. D.
    Hint

  2.   Which is the graph of f(x) = [[2x]]?
    A. B.
    C. D.
    Hint

  3.   Which of the following graphs represents the function:

    A. B.
    C. D.
    Hint

  4.   What is the value of y when x = 2?
   
    A. 2 B. 1
    C. 0 D. undefined
    Hint

  5.   A bank charges a $10 fee if the account balance is less than $200. If the balance is in between $200 and $500 there is a $5 fee. If at least $500 is in the account, there is no fee.Graph the fee schedule for different account balances.
    A. B.
    C. D.
    Hint