Consider the following. (If an answer does not exist, enter DNE.) G(x) = 13x6",7 60(13"7 (a) Find the interval(s) of increase. (Enter your answer using interval notation.) E Find the interval(s) of decrease. (Enter your answer using interval notation.) (b) Find the local minimum value(s). (Enter your answers as a comma-separated list.) E Find the local maximum value(s). (Enter your answers as a comma-separated list.) (c) Find the inection point. (x.y)=(|:|) Find the interval(s) where the function is concave up. (Enter your answer using interval notation.) D Find the interval(s) where the function is concave down. (Enter your answer using interval notation.) D