Question

Need help on question 13

Answer 1

-2

Explanation:

1. Find the y-coordinates at each end of the requested interval:

x= -1 ==> y = 4 and x= 1 ==> y = 0

2. Use the slope formula to find the rate of change: (y₂ - y₁)/(x₂ - x₁)

(0 - 4) / (1 - -1) = -4 / 2 = -2