1.   Find the balance after 40 years of a $15,000 investment earning 9% interest compounded continuously.
    A. $548,973.52 B. $541,736.11
    C. $541,649.63 D. $567,451.29
    Hint

  2.   Which equation is represented by the graph?
   
    A. y = 2e B. y = -2e-x
    C. y = 2ex D. y = -2ex
    Hint

  3.   Find the balance of a $500 investment after 18 years earning 7.9% interest compounded continuously.
    A. $2,072.70 B. $502.20
    C. $2,146.32 D. $541.10
    Hint

  4.   Compare the balance after 15 years of a $5,000 investment earning 7.12% interest compounded continuously to the same investment compounded semiannually.
    A. You would earn $267.67 more by choosing the compounded continuously account.
    B. You would earn $376.31 more by choosing the compounded continuously account.
    C. You would earn the same from both accounts.
    D. You would earn $267.67 more by choosing the compounded annually account.
    Hint

  5.   Which of the following equations models exponential growth in terms of e?
    A. y = (108)e.054t B. y = (108) e-4.6t
    C. y = (106) e-.0223t D. y = (-10) e-2.74t
    Hint