Step Function Graphs from Stories

1. A parking garage charges $5 for the first hour and $3 for each additional hour or part thereof. Sketch a graph representing the cost of parking for up to 5 hours. Label your axes.

2. A local coffee shop charges $2.00 for the first 15 minutes of Wi-Fi usage and then $1.00 for each additional 15 minutes or part thereof. Create a step function graph that represents the cost of Wi-Fi usage for up to an hour.

3. Describe the intervals and constant values in the graph of following scenario: A museum charges $15 for entry per visitor. The independent variable is the number of visitors. The dependent variable is the total amount paid for x visitors.