Problema Solution
American Video charges an annual membership fee plus the price of video rentals. The cost for renting one video is $12.00. The cost for renting three videos is $16.00.
If American Video used a linear relationship to represent the total amount spent (T) and the number of videos rented (v), what would be the slope of the line?
Answer provided by our tutors
use points in the form
(v,T) where v is the number of videos rented and T is the total cost
the cost for renting one video is $12
so you have the point (1,12)
the cost for renting 3 videos is $16
so you have the point (3,16)
find the slope between these two points
slope = change in y / change in x
slope = (16-12)/(3-1)
slope = 4/2
slope = 2
the slope of the line would be 2