Question

Regina is comparing the cost to rent a car from four different companies. She found that the cost to rent from each company can be modeled by a linear function of the number of miles driven. The formulas for each company are shown in the table.

Daily Cost to Rent a Car Driven x Miles
Company
Cost in dollars
1
y = 18 + 0.05 x
2
y = 0.27 x
3
y = 27
4
y = 18 + 0.06 x

Which statement is best supported by the table?
Company 1 and company 4 charge the same rate per mile.
Company 2 and company 3 charge the same rate per mile.
Company 2 charges only a flat fee and does not charge per mile.
Company 3 charges only a flat fee and does not charge per mile.

Answer 1

Company 3 charges only a flat fee and does not charge per mile.

Explanation: Company 3's cost is y = 27, which has no x term, so the cost is a fixed $27 regardless of miles driven.