I am having a hard time understanding this question.

Question

Use the graph of $f(x)$ and $g(x)$ to answer the following.

a. $(1)$
b. $(−7)$
c. $(7) − (4)$
d. $((−5))$
e. Find the $x$-value(s) that satisfy $() = 6.$
f. State the domain of $f(x)$ in interval notation.
g. State the range of $g(x)$ in interval notation.

Tne graph of $f(x)$ and $g(x)$

Answer 1

From the graph, we have: $$g(1)=4 \land f(-7)=-4 \land f(7)-g(4)=1 \land f(g(-5))=f(4)=6$$ Also, we have $$f(x)=6 \leftrightarrow x=4\lor x=9$$ And range of $g(x)$ is $2\leq y\leq 7$.