Question

What is the average rate of change of g over the interval -8≤t≤2? Give an exact number.

Answer 1

Per the plot, looks like g(-8) = 1 and g(2) = -4. Then the average rate of change of g over [-8, 2] is

(g(2) - g(-8)) / (2 - (-8)) = (-3  - 1)/10 = -2/5