2. (2 points each) Use the given graphs of fand g to evaluate each expression or explain why it is undefined. (a) f(g(2)) (b) g(f(0)) (c) (fog)(0) (d) (g . f) (6) (e) (gog)(-2) ( f ) ( fo f ) ( 4 ) (a) f(g(2) ) (b) g(f(0)) 0 2 (c) (fog(0)) (d) (go f (6)) (e) (gog(-2)) (f) (fof ( 4) )