How should speeding tickets be calculated?

In most places, fines for speeding are calculated according to how many miles-per-hour over the speed limit a driver is moving. But does that make sense? Is driving 80 in a 60 really the same as driving 40 in a 20? If not, is there a better way to determine speeding penalties?

In this lesson, students learn how speeding tickets are calculated and use linear functions in order to compare a few different proposals and figure out the fairest way to keep the highways safe.

- Given the recorded speed and speed limit, evaluate a linear function to calculate a fine
- Using the fine amount and speed limit, solve for how fast the fine recipient must have been driving
- Create graphical representations from verbal descriptions of a linear relationship
- Compare models for speeding fines, and determine when each would be favorable for drivers