### Home > PC3 > Chapter 3 > Lesson 3.2.1 > Problem3-100

3-100.

KRISTOF’S EARNINGS

Kristof worked at MacDonut’s for $\8.00$/hour. One Friday night he worked $5$ hours.

1. How much did he earn that night? What is his rate of pay?

2. Sketch a graph of Kristof’s pay rate where the horizontal axis represents hours and the vertical axis represents dollars earned per hour. How is Kristof’s constant pay rate represented on your graph?

3. The area under your line should be a rectangle. Divide the rectangle you get into smaller rectangles by drawing vertical lines at the $1$-hour, $2$-hour, $3$-hour, $4$-hour, and $5$-hour marks. How many rectangles have you created?

4. Explain to the other people on your team what the area of each of the rectangles you created in part (c) represents. Hint: What are the units of each side of the rectangles and how are they related to the area?