Question

What is the average rate of change from x = −1 to x = 1?

Answer 1

Answer: -2

Explanation:

THIS IS THE RIGHT ANSWER!! :)

Answer 2

Answer: when you write a linear equation as y = a*x, where you are relationing the numbers y to x, the rate of change from x to y is a.

then, the rate of change from -1 to 1 is the number that when multiplied by -1, turns into 1, so:

-1*a = 1

a = 1/-1 = -1

So the rate of change from x = -1 yo x = 1 is a = -1.