To determine where the function has a negative average rate of change, you'll need to find intervals where the function decreases over consecutive endpoints. Since I can't view or analyze images, please identify the specific intervals on the graph where the function is declining or has a negative slope between two points.
Once you identify these intervals, you can express the answer in the format [a, b], where "a" and "b" are the endpoints of the interval over which the average rate of change is negative.
If you provide those intervals or any relevant points, I can guide you further!