Answer
B
Work Step by Step
We are given that $f(x)=(\frac{1}{2})^{-x}$. In order to find out which graph matches this function, we can find the value of $f(1)$.
$f(1)=(\frac{1}{2})^{-1}=2^{1}=2$
Therefore, $f(x)$ matches Graph B, as it is the only graph that contains the ordered pair $(1,2)$.
