Question

A photographer charges a sitting fee of $15, and charges $4 for each 5-in. by 7 in.photograph the customer orders. The linear function can be used to calculate the customer’s cost (c) based on the number of photographs (n) purchased. How many photographs can be purchased if you cannot spend more than $50.00?

Answer 1

so the linear function can be c=4n+15
solving for a maximum cost of 50.00
50.00=4n+15
35=4n
8.75=n
you cannot have parts of a photo so the maximum number of photos that can be purchased is 8.