Question

What is the rate of change for the following? (4,5) (2, 15)

Answer 1

-5

Explanation:

Given these two points, we can just plug them into the slope formula.

`Slope=(y_2-y_1)/(x_2-x_1)`

`(15-5)/(2-4)\\\\(10)/(-2) \\\\-5`

Answer 2

-5

Explanation:

Rate of Change also slope

Slope = y-y1/x-x1 = tanα = y/x

15-5/2-4 = 10/-2 =-5