Exponential Functions

1.  For f(x) = 5^x, determine f(5).

a].  f(5) = 3125
b].  f(5) = 55
c].  f(5) = 25

2.     For f(x) = , determine f(-3).

a].   f(-3) = -3
b].   f(-3) = 8
c].   f(-3) =

3.    For f(x) = e^x, determine f(1)

a].   f(1) = 2.718
b].   f(1) = 1
c].   f(1) = 0

4.  Suppose you invest $500 in an account with an annual interest rate of 7%, compounded monthly.   You do not make any withdrawals during this period, so the interest will itself earn interest.  How much money will be in the account after 3 years? 

a]. $616.84
b]. $616.43
c]. $615.72

5. Suppose you invest $500 in an account with an annual interest rate of 5.5%, compounded continuously.   You do not make any withdrawals during this period, so the interest will itself earn interest.  How much money will be in the account after 2 years? 

a].  $552.59
b]. $558.14
c].  $500

6. Which of the following graphs represents f(x) =

a].   

b].   

c].   

7. Which of the following graphs represents f(x) = 5^x.

a].   

b].   

c].