Use the graph to determine a. intervals on which the function is increasing, if any. b. intervals on which the function is decreasing, if any. 3 12 -5-4-3-2- G a. Use the graph to determine intervals on which the function is increasing, if any. Select the correct choice below and, if necessary, fill in the answer box within your choice. OA. The interval(s) on which the function is increasing is/are (Type your answer in interval notation.) OB. There is no interval on which the function is increasing. b. Use the graph to determine intervals on which the function is decreasing, if any. Select the correct choice below and, if necessary, fill in the answer box within your choice. OA. The interval(s) on which the function is decreasing is/are (Type your answer in interval notation.) B. There is no interval on which the function is decreasing.