A taxi service charges a base fee plus a per-mile rate. The total cost , in dollars, for a ride of miles is shown in the table below.
| Miles, | Cost, (dollars) |
|---|---|
| 2 | 7.00 |
| 5 | 13.00 |
| 8 | 19.00 |
What does the slope of the linear relationship between and represent?
The total cost for a 2-mile ride.
The base fee charged by the taxi service.
The cost per mile charged by the taxi service.
The maximum number of miles a customer can travel.