We have the following:
What we must do is evaluate in each function and check the values
[tex]\begin{gathered} f(x)=(\frac{1}{3})^{-x} \\ f(4)=(\frac{1}{3})^{-4}=81 \\ f(-2)=(\frac{1}{3})^{-2}=9 \\ \text{TRUE} \end{gathered}[/tex]
The answer is the option F
