Sample Problem

In order to join a movie rental service, there is an initial $60 fee, then a $5 fee every month. Write an equation in slope-intercept form modeling this situation, then use it to find out how much you will have paid after 10 months of this service.



With the $60 initial fee, and $5 monthly fee, the equation for this situation is y = 5x + 60. Plugging in 10 for x: y = 5(10) + 60, we get y = 110.