#### Answer

$x=-7$ and $x=3$

#### Work Step by Step

$f(x)$ represents the value of the function $f$ at $x$.
Note that the graph passes through the points $(-7, -2)$ and $(3, -2)$.
Thus, $f(-7) = -2$ and $f(3) = -2$.
Therefore. the values of $x$ for which $f(x)=-2 $ are -7 and 3.