Practice Test 3 Question 6 of 32 (1 point) I Question Attempt: 1 of 1 = 1 2 = 3 -7 = 4 6 -5 4 = 5 6 7 8 Determine the interval(s) on which the function is (strictly) decreasing. Write your answer as an interval or list of intervals. When writing a list of intervals, make sure to separate each interval with a comma and to use as few intervals as possible. Click on "None" if applicable. 0 9 10 00 [0,0] (0,0) 8 None 11 X Time Remaining: 1:18: -8 12 13 Left paren comma right