7. Which graph represents the function x) - x(x- l)(x 3)? a. c. 8. Find the critical points for the function x) = 12.: - x3. 3. (2,16) and (2, 16) c. (2, 16) and (0, 0) b. (0, 0) and (1, 2) cl. (2, l6) and (1, 11) 9. Find the critical point for the mction x) - x0: 1'5). 3. (3, 27) c. (3, 9) 13. (0,0) (1. (5, 0) 10. Find f"(x) if 112:)- if}. a. l