13. [-/0.71 Points] DETAILS TAMUBUSCALC1 3.1.013. 0/6 Submissions Used The graph below is of f'(x) for some function f(x) with domain (-co, co) (i.e., the graph of the derivative of f(x)). 10 5 -10 -5 10 -5 10 (a) What are the critical values of f(x)? (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) X = (b) On what intervals is f increasing? (Enter your answer using interval notation.) (c) On what intervals is f decreasing? (Enter your answer using interval notation.) (d) Find the x-value(s) of the local maxima of f(x). (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) X = (e) Find the x-value(s) of the local minima of f(x). (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) X = Submit Answer 14. [-/0.77 Points] DETAILS TAMUBUSCALC1 3.1.014. 0/6 Submissions Used The profit of manufacturing x toasters in one day is given by the following. P(x) = -0.05x2+ 22x - 160, 0