What is the average rate of change for ƒ (x) = - 2x + 70 over the interval 2 ≤ x ≤ 6?

- 2

Step-by-step explanation:

Since the function is linear then the average rate of change is the measure of the slope of the line.

The equation of a line in slope - intercept form is

y = mx + c (m is the slope and c the y - intercept)

y = - 2x + 70 ← is in slope - intercept form

with slope m = - 2

Thus rate of change is - 2