A cab company charges $8 per mile for a lift to the airport.

Question

What change would the company make to their charges to make this a non proportional situation?
A. Charge a flat rate of $10 and then $8 per mile
B. No changes are needed
C. Charge $4 per mile instead of $8
D. Charge $12 per mile instead of $8

Answer 1

To make the situation non-proportional, the company needs to introduce a fixed cost or fee that does not depend on the distance traveled.

Option A, which suggests charging a flat rate of $10 and then $8 per mile, introduces a flat fee before considering the mileage, thus making the total cost dependent on two variables (the flat fee and the distance), which is a non-proportional situation.

Options B, C, and D would keep the charge proportional, either by maintaining or changing the per-mile charge without adding a fixed fee.

Therefore, the correct answer is:

A. Charge a flat rate of $10 and then $8 per mile.