A cab company charges $12 per mile for a lift to the airport.

What change would the company make to their charges to make this a non proportional situation?

(1 point)
Responses

Charge a flat rate of $20 and then $12 per mile
Charge a flat rate of $20 and then $12 per mile

No changes are needed.
No changes are needed.

Charge $15 per mile instead of $12
Charge $15 per mile instead of $12

Charge $4 per mile instead of $12

Charge $4 per mile instead of $12

To make the situation non-proportional, the cab company could charge a flat rate of $20 and then $12 per mile.

To determine which change would make the situation non-proportional, we need to understand what it means for a situation to be proportional. In a proportional situation, two quantities vary together in a constant ratio. In this case, the cab company charges $12 per mile for a lift to the airport.

To make this a non-proportional situation, we would need to change the charges in a way that does not maintain a constant ratio between the distance traveled and the cost.

Let's consider the options given:

- Charge a flat rate of $20 and then $12 per mile: This option maintains a constant ratio of $12 per mile, so it does not make the situation non-proportional.
- No changes are needed: If no changes are made, the situation remains proportional, so this is not the correct answer.
- Charge $15 per mile instead of $12: This change still maintains a constant ratio of $15 per mile, so it does not make the situation non-proportional.
- Charge $4 per mile instead of $12: By changing the charge per mile from $12 to $4, the ratio between the distance traveled and the cost is no longer constant. This change makes the situation non-proportional.

Therefore, the correct answer is to charge $4 per mile instead of $12.