#### Answer

The function $f(x) = 5^x$ is an exponential function with base $5$; $f(-2) = \frac{1}{25}$, $f(0) = 1$, $f(2) = 25$, and $f(6) = 15,625$

#### Work Step by Step

The base is the number being raised to a power, in this case 5. For each function, substitute the value in parenthesis into the x in the equation