Determine where the function is (a) increasing, (b) decreasing, and (c) determine where relative extrema occur. Do not sketch the graph. y = -x 20x* + 150 ...... (a) For which interval(s) is the function increasing? Solect the correct choice below and, if necessary, fillin the answer box within your choice. O A. The tunction is increasing on (Type your answer in interval notation. Use a comma to separate answors as needed) OB. The function is never incroasing Determine where the function is (a) increasing, (b) decreasing, and (c) determine where relative extrema occur. Do not sketch the graph. y = -x 20x* + 150 ...... (a) For which interval(s) is the function increasing? Solect the correct choice below and, if necessary, fillin the answer box within your choice. O A. The tunction is increasing on (Type your answer in interval notation. Use a comma to separate answors as needed) OB. The function is never incroasing