Use the graphs to evaluate the expressions below.

123456-1123456-1f(x)x 123456-1123456-1g(x)x

f(g(1))=\displaystyle {f{{\left({g{{\left({1}\right)}}}\right)}}}=

g(f(2))=\displaystyle {g{{\left({f{{\left({2}\right)}}}\right)}}}=

f(f(4))=\displaystyle {f{{\left({f{{\left({4}\right)}}}\right)}}}=

g(g(0))=\displaystyle {g{{\left({g{{\left({0}\right)}}}\right)}}}=