Question

Find the rate of change on the graph​

Answer 1

Resale value of a refrigerator

The rate of change on the graph :---

(Final amount - initial amount)/(Final year - initial year)

`((0 -400))/((9 - 0)) = (-400)/(9) =\boxed{-44.44}✓\\`

slope is negative as the amount is decreasing every year

$44.44 per year is the right answer.

Answer 2

• 44 4/9

Explanation:

Initial value is $400

Value after 9 years is zero

Change in value over 9 years is $400

Rate of change is:

• 400/9 = 44 4/9