Question

Video rental stores are being replaced by streaming subscriptions. In one area, there were 10 video rental locations in 1996, but by 2016, that number had dwindled to 1. Assuming a constant decrease in the number of stores, calculate the unit rate of change (slope) from 1996 to 2016.

Answer 1

Answer:

The unit rate is -1 store per year

Step-by-step explanation:

Let

x -----> the number of years since 1996

y ----> the number of video rental stores

we know that

The year 1996 represent x=0

so

2016 represent ----> x=2016-1996=10 years

we have the points

(0,10) and (10,1)

The unit rate is equal to the slope of the linear equation

Find the slope m

$m=(1-10)/(10-0)$

$m=-1\ stores/year$ ----> is negative because is a decreasing function

therefore

The unit rate is -1 store per year