Question

Ashley is a member of the Movie-a-Month Club, where she rents movies each monthShe uses the table below to keep track of the number of movies she rents and the total cost, which includes her monthly membership fee.

Number of Movies vsTotal Cost
Number of Movies

12

15

9

22
Total Cost
$35.00
$42.50
$27.50
$60.00

Ashley graphed the relationship in the tableWhat is the slope of the graph, and what does it represent?

Answer 1

Answer: The slope of the graph is 2.50, and it represents the cost of each movie

Explanation:

Answer 2

The slope is m=2.5 $/movie

Explanation:

The slope of the graph could be found using any two points
`(x_(1) ,y_(1) )` y
`(x_(2) ,y_(2) )` and the equation for slope of a line, which is

`m=(y_(2)-y_(1))/(x_(2)-x_(1))`

So, we select the points
`(12,35)` y
`(22,60)`, and we replace the values in the equation for slope,

`m=(60-35)/(22-12)=2.5`

And in this case, represents the cost to rent one movie.