Answer:
y = 40 + 2x.
Step-by-step explanation:
To become a member of the library-all-star-members club, we have to invest $40 for a sign-up fee and a $2 monthly fee.
If we consider x months membership is required and the total cost for that is y.
Then we can model the situation with an equation in slope-intercept form as
y = 40 + 2x. ( Answer )
