Question

I need help with this problem calculate the rate of change

Answer 1

In order to find the rate of change of the resale value of automobile, use the following formula:

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

where (x1,y1) and (x2,y2) are any two points on the line.

For instance, based on the given graph, you can use:

(x1,y1) = (0 , 30000)

(x2,y2) = (2 , 15000)

Replace the previous values into the formula for m and simplify:

`m=(15000-30000)/(2-0)=(-15000)/(2)=-7500`

Hence, the rate of change is -7500