A) find the interval(s) of increase B) find the local minimum value(s)C) find the interval(s) where the graph is concave up

Consider the following function. (If an answer does not exist, enter DNE.) g(x) = 250 + 8x3 + x4 (a) Find the interval(s) of increase. (Enter your answer using interval notation.) (-6,0) X Find the interval(s) of decrease. (Enter your answer using interval notation.) (-00, - 6) (b) Find the local minimum value(s). (Enter your answers as a comma-separated list.) (-6, -182) X Find the local maximum value(s). (Enter your answers as a comma-separated list.) DNE (c) Find the inflection points. (Order your answers from smallest to largest x, then from smallest to largest y.) ( x , y ) = (-4, -6 ( x , y ) = 0,250 Find the interval(s) where the graph is concave up. (Enter your answer using interval notation.) 1- 00 , - 4 ) X Find the interval(s) where the graph is concave down. (Enter your answer using interval notation.)