Question

Lee pays $72 in advance on his account at the movie store. Every time he rents a movie, $4 is deducted from his account for every movie rented. Write a linear function that models the value remaining in his account after renting x movies. Find the value remaining after renting 4 movies.

Answer 1

So it would be,
y = 72 - 4x
y is the total money that is left on the account and x isthe movies rented. after renting 4 movies it would be,

y = 72 - 4(4)
y = 72 - 16
y = 56

So there are $56 left in the account after renting 4 movies.