Answer
(a) $-1$
(b) $-1$
(c) $8$
(d) $0$
(e) $8$
(f) $-7$
Work Step by Step
Use the given table to evaluate each given expression and obtain:
(a) $(f\circ g)(1)=f(g(1))=f(0)=-1$
(b) $(f\circ g)(-1)=f(g(-1))=f(0)=-1$
(c) $(g\circ f)(-1)=g(f(-1))=g(-3)=8$
(d) $(g\circ f)(0)=g(f(0))=g(-1)=0$
(e) $(g\circ g)(-2)=g(g(-2))=g(3)=8$
(f) $(f\circ f)(-1)=f(f(-1))=f(-3)=-7$