Homework: HW 12a: First Question 1, Instructor- HW Score: 25%, 1 of 4 points O Derivative Test eated question Points: 0 of 1 Save Homework: HW 12a: First Derivative Test For the function graphed below, find the open intervals for which a) f '(x) > 0, and Partial Select the correct choice below and fill in any answer boxes within b) f' ( x) 0 is/are Type your answer in interval notation. Use a comma to separate answers as needed.) O B. f '(x) is never greater than 0 b) Select the correct choice below and fill in any answer boxes within your choice O A. The interval(s) for which f '(x)