Provide an appropriate response.Explain why f(x) = 2x is an exponential function but f(x) = x2 is not.
What will be an ideal response?
2x is an exponential function because the variable is in the exponent. In f(x) = x2, the variable is not in the exponent; this is a polynomial function.
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Solve.If the population of a certain country doubles in 9.37 years, find the growth rate k. Assume that the population increases exponentially.
A. 5.7% B. 3.1% C. 8.2% D. 7.4%
Solve.The time t (in ps) required for N calculations by a certain computer design is 
Sketch the graph. t ps
N calculations
A.
t ps
N calculations
B.
t ps
N calculations
C.
t ps
N calculations
D.
t ps
N calculations
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 3-2? 34
A. 
B. 6
C. -729
D. 9
Solve the problem.Jennifer's annual salary increased from $24,000 to $49,000 over the last five years. Find the percent increase in her salary during this time period. Round to the nearest tenth of a percent.
A. 104.2% B. 10.4% C. 51.0% D. 1.0%