Answer:
Step-by-step explanation:
Let x represents the amount that the customer pays per hour
for renting the vacuum cleaner before returning it.
Let y represent the flat rate that the store charges a customer for renting the vacuum cleaner.
Let F represent the amount that the store charges a customer for renting the vacuum cleaner for x hours.
A linear function F for the total retail cost of a vacuum cleaner would be
F(x) = x + y
If the customer rents it for n hours, the total amount becomes
F(x) = nx + y
