Superlesson
Project 3-2
Algebra
Chapter 3, Introducing Functions
How wasteful can a leak be? Let's investigate using water data from the Internet.
Part A, Understanding Linear Functions
1. Open the Water Leak Information Web site.
a. Make a chart for the first 10 days of the month indicating the total number of gallons of water that leaked.
b. Write an equation for the total number of gallons leaked.
c. Is y proportional to x? Explain.
d. Predict whether or not the graph of your equation would be linear. Explain your reasoning.
e. Graph your equation.
2. Look at the table, equation, and graph from 1. In which way do you think it is easiest to see the amount of water being wasted? Explain your answer.