Question

What is the constant rate of change?

Answer 1

To find the constant rate of change divide the miles by their hours-
70/2=35
140/4 =35
210/6=35
280/8=35
So the constant rate of change is D. 35 miles per hour.

Answer 2

280-70=210

8-2 = 6

210/6 = 35

 answer is D 35 miles per hour