(a) The graph in the figure given below is made of line segments joined end to end. At which points of the interval [-4,6] is f' not defined? Give reasons for your answer. (b) Graph the derivative of f. (-4,0) -8 -4 6 4 2 -2 (0,2) --4- 4 6 (6,2) (1,-3) (4, -3) 8 X (a) Choose the correct answer below. OA. f' is not defined at x = 0, x = 1, and x=4 because at these points the graph has corners. OB. f' is not defined at x = -4, x = 1, and x=4 because at these points the graph has cusps. OC. f' is not defined at x = -4, x = 1, and x=4 because at these points the graph has corners. OD. f' is not defined at x = 0, x = 1, and x = 6 because at these points the graph has cusps. (b) Choose the correct graph of the derivative of f below. O A. 10 C. lot 0-0 10 B. -10 D. 00 X 10 Next 56 Li 1 Co 91 Toc (b) Choose the correct graph of the derivative of f below. O A. -10 O C. o O 00 100 88 O X 10 OB. -10 D. 10 19 09 Potot Poto 00 10 X 10