select the points you need to calculate the average rate of change from the beginning of the slide to when…

select the points you need to calculate the average rate of change from the beginning of the slide to when the slide has covered a horizontal distance of 15 feet.\n(0, 80)\n(5, 40)\n(10, 20)\n(15, 10)\ndone
Answer
Explanation:
Step1: Identify start - end points
The start of the slide is at horizontal distance 0. The end is at horizontal distance 15. So we need the points at these two horizontal distances.
Step2: Locate points on graph
The point at horizontal distance 0 is (0, 80) and at horizontal distance 15 is (15, 10).
Answer:
(0, 80), (15, 10)