#### Answer

$a.\quad -2$
$b.\quad -1$
$c.\quad -1$ and $1$

#### Work Step by Step

$a.$
the number in the column $h(x)$ that corresponds to $x=-2$ is $-2$
$h(-2)=-2$
$b.$
the number in the column $h(x)$ that corresponds to $x=1$ is $-1$
$h(-1)=1$
$c.$
The number in the column $x$ that corresponds to $h(x)=-1$...
...there is $x=-1$, ... and there is also $x=1$, so
$h(-1)=-1$
$h(1)=-1$