This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any pointsfor the skipped part, and you will not be able to come back to the skipped part.Tutorial ExerciseIdentify the open intervals on which the function is increasing or decreasing.g(x) = x² - 6x - 280Step 1To determine the intervals on which the function is increasing or decreasing, first find the critical numbers of the givenfunction.Determine g'(x).g(x) = x² - 6x - 280g'(x)=2x-6Step 2To determine the critical numbers of g(x), set g'(x) equal to zero and solve for x.g'(x) = 02(x-2x-6=01)=02r-6X =