Answer
See the picture below.
Work Step by Step
By calculating a few pairs and connecting the dots on the graph with a smooth curve, we graph the function.
A few pairs:
$f(-1)=3^{-1}=\frac{1}{3}$
$f(0)=3^0=1$
$f(1)=3^1=3$
$f(2)=3^2=9$
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