1.   Use the following table to find the population of bacteria in hour n.
   
    A. 30,000 × 66
    B. 30,0006n
    C. 180,000n
    D. 6 × 30,000 n
    Hint

  2.   Use the following table to find the amount of medicine remaining in the bloodstream after n hours.
   
    A. 0.85n B. 0.85 × 500n
    C. 425 × 0.85n D. 500 × 0.85n
    Hint

  3.   Which curve represents exponential decay?
   
    A. curve d B. curve c
    C. curve b D. curve a
    Hint

  4.   Which equation represents exponential decay?
    A. y = 63 × 4x B. y = 63 × 4.4x
    C. y = · 63x D. y = 63 × 0.4x
    Hint

  5.   Find the table that does not represent an exponential equation.
    A.
    B.
    C.
    D.
    Hint



Glencoe
The McGraw-Hill Companies