Please solve equation below as quickly as possible:

Find the open intervals where the function graphed below is a) increasing, or b) decreasing. a) List the open interval(s) on which the function is increasing. Select the correct choice below and, if 10- necessary, fill in the answer box to complete your choice. 8- 6- O A. The function is increasing on the interval(s). (Type your answer in interval notation. Use a comma to separate answers as needed. O B. The function is never increasing. 10 -8 -6 -4 -2 2 4 6 10 b) List the open interval(s) on which the function is decreasing. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The function is decreasing on the interval(s) . (Type your answer in interval notation. Use a comma to separate answers as needed.) O B. The function is never decreasing