Answer
$h(\frac{1}{3}) \approx 0.368$
$h(1.5)\approx0.011$
$h(-1)\approx20.085$
$h(-\pi)\approx12391.648$
Work Step by Step
Using a calculator (To be more specific a scientific calculator) we can simply input the values and calculate approximate value of $h(x)$ as it equals to $e^{-3x}$:
$h(x)=e^{-3x}$
$h(\frac{1}{3}) = e^{-\frac{3}{3}} = e^{-1} = \frac{1}{e} \approx 0.368$
$h(1.5)=e^{-4.5}=\frac{1}{e^{4.5}}\approx0.011$
$h(-1)=e^{3}\approx20.085$
$h(-\pi)=e^{3\pi}\approx12391.648$