Please help! Question 18

Perform a first derivative test on the function f(x) = 3x- + x + 2; [ - 4,4]. a. Locate the critical points of the given function. b. Use the first derivative test to locate the local maximum and minimum values. c. Identify the absolute maximum and minimum values of the function on the given interval (when they exist). a. Locate the critical points of the given function. Select the correct choice below and, If necessary, fill in the answer box to complete your choice. A. The critical point(s) is/are at'x =. (Simplify your answer. Use a comma to separate answers as needed.) O B. The function does not have a critical point. b. Locate the minimum value. Select the correct choice below and, if necessary, fill in the answer box within your choice. O A. There is a local minimum at x = (Simplify your answer.) O B. There is no local minimum. Locate the maximum value. Select the correct choice below and, if necessary, fill in the answer box within your choice. O A. There is a local maximum at x = (Simplify your answer.) O B. There is no local maximum. c. Identify the absolute minimum value of the function. Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. O A. The absolute minimum value is (Simplify your answer.) 01:40:13