Answer
$f(\frac{1}{2}) \approx 0.577
\\f(2.5) \approx 5.196
\\f(-1) \approx 0.111
\\f(\frac{1}{4}) \approx 0.439$
Work Step by Step
Substitute each of the given values of $x$ then solve for $f(x)$. Use a calculator to have:
$\\f(\frac{1}{2})=3^{\frac{1}{2}-1} \approx 0.577
\\f(2.5) = 3^{2.5-1} \approx 5.196
\\f(-1)=3^{-1-1} \approx 0.111
\\f(\frac{1}{4})= 4^{\frac{1}{4}-1} \approx 0.439$
