Answer
$1$
Work Step by Step
Find the corresponding value of $g(-1)$ on the graph since we are plugging the corresponding value of $g(-1)$ into $f(x)$ and finding the corresponding value of $f(g(x))$ on the graph as well.
$g(-1)=-3$
$f(-3)=1$
$f(g(x))=f(g(-1))=f(-3)=1$
