A Population Is Increasing According to the Exponential Function Defined $\mathrm { y } = 3 \mathrm { e } .04 \mathrm { x }$

Multiple Choice

A population is increasing according to the exponential function defined by $\mathrm { y } = 3 \mathrm { e } .04 \mathrm { x }$ , where $\mathrm { y }$ is in millions and $x$ is the number of years. Which of the following should be done in order to answer the question "How large will the population be in 4 years?"

A) Solve $3 e ^ { .04 x } = 4$ .
B) Evaluate $\mathrm { y } = 3 \mathrm { e } \cdot 04 ( 1 / 4 )$ .
C) Solve $3 e ^ { .04 x } = 12$ .
D) Evaluate $y = 3 e ^ { - 04 ( 4 ) }$ .