1. Investigation 2 Recognizing Linear Functions Words, Tables and Graphs
Unit 4 Linear Functions
Investigation 2
Recognizing Linear Functions
Words, Tables and Graphs

2. Class Goals
By the end of the period, you will understand and be able to…
Recognize linear functions in tabular and graphical forms.
Represent functions with verbal descriptions, equations, graphs, and tables.

3. More Class Goals
By the end of the period, you will understand and be able to…
Students will develop methods for identifying the characteristics of a linear functions.
Understand rate of change and initial value in a real word context.

4. Which graph shows a linear relationship? Explain.y x 5 -4 -2 1 3 -5 -3 -1 2 4 y x 5 -4 -2 1 3 -5 -3 -1 2 4

5. Which graph shows a linear relationship? Explain.y x 5 -4 -2 1 3 -5 -3 -1 2 4 y x 5 -4 -2 1 3 -5 -3 -1 2 4

6. Which graph shows a linear relationship? Explain.y x 5 -4 -2 1 3 -5 -3 -1 2 4 y x 5 -4 -2 1 3 -5 -3 -1 2 4

7. Which table shows a linear relationship? Explain.

8. Which table shows a linear relationship? Explain.

9. Which table shows a linear relationship? Explain.

10. Complete the Table Pizza Circumference
Is the relationship Linear? Explain.

11. Complete the Table
Pizza Area
Is the relationship Linear? Explain.

12. Which Size is a Better Deal?
Is paying $20 for a large pizza which is 18 inches in diameter is a better buy than paying $5 for a personal size pizza that is 6 inches across. 

13. Pizza Theory
Suppose someone eats only the stuffed crust and gives the center of the pizza to a friend. How can they maximize the amount of crust and spend as little as possible?