7. Which graph represents the function f(x) = x(x - 1)(x - 3)? a. No 4 -2 2 4 1 -2 0 2 4 N ANO b. d. 4 -2 0 2 -4 -2 0 2 X -2 8. Find the critical points for the function f(x) = 12x -x3. a. (2, 16) and (-2, -16) c. (2, -16) and (0, 0) b. (0, 0) and (1, 2) d. (2, 16) and (4, 11) 9. Find the critical point for the function f(x) - x(x - 6). a. ( 3, 27) C. (6, 0) b. (0, 0) (3, -9) 10. Find f"(x) if A(x) = x. a. 1 C. b. d