You decide to park your car in a parking garage that charges $3.00 for the first hour and $1.00 for each hour (or any part of an hour) after that. Homework Help ✎

1. How much will it cost to park your car for 90 minutes?

2. How much will it cost to park your car for 118 minutes? 119 minutes?

3. How much will it cost to park your car for 120 minutes? 121 minutes?

4. Graph the cost in relation to the length of time your car is parked.

5. Is this function continuous?