I WILL MARK BRAINLIEST TO CORRECT ANSWER

Answer:
0
Step-by-step explanation:
the average rate of change between to points is simply the change in y's divided by the change in x's
the two points they've selected are (-6, -1) and (2, -1)
(y2 - y1) / (x2 - x1)
(-1 - -1) / (2 - -6)
(-1 + 1) / (2 + 6)
0/8
0
the average rate of change is zero