Answer
$h(-3)=30$
$h(0)=0$
$h(4)=-40$
Work Step by Step
The given function is
$\Rightarrow h(x)=-10x$
Substitute $x=-3$.
$\Rightarrow h(-3)=-10(-3)$
Simplify.
$\Rightarrow h(-3)=30$
Substitute $x=0$.
$\Rightarrow h(0)=-10(0)$
Simplify.
$\Rightarrow h(0)=0$
Substitute $x=4$.
$\Rightarrow h(4)=-10(4)$
Simplify.
$\Rightarrow h(4)=-40$
