The Graph Below shows the approximate decline in the value o

The Graph Below shows the approximate decline in the value of a used car over a 5-year period. Write a sentence interpreting the meaning of the slope for this segment using apporpriate units.

Solution

Slope is always the average rate of change that is actually the ratio of difference of two y values and difference of two x values.

So clearly slope of this line = (6100- 8650 ) /(4-1) = -2500/3 = -833.33

That means that the value of the car is declining at the rate of $833.33 per year.

Answer