Question

attach file ,please!

Answer 1

lets start with
\[f\circ g \]

Answer 2

\[g(-1)=10\] but
\[f(10)\] does not exist so we can forget about
\[f\circ g(-1)\]

Answer 3

\[g(2)=0\] and
\[f(2)=-1\] so the only ordered pair for
\[f\circ g\] is\[ \{(0,-1)\}\]

Answer 4

now we repeat the process for
\[g\circ f\]
\[f(0)=-7\] but there is no
\[g(-7)\] so toss that one
\[f(1)=2\]
\[g(2)=0\] so we have the ordered pair (1,0)
similarly
\[f(2)=-1\]
\[g(-1)=10\] so we get (2,10) and the ordered pairs for
\[g\circ f\] are
\[\{(1,0),(2,10)\}\]