1. Linear Functions and Their Properties Section 4.1

2. Linear Functions

3. Average Rate of Change of a Linear Function

4. Increasing, Decreasing or Constant

5. Example

6. Examples

7. Example Only linear functions have a constant rate of change. So, if the average rate of change is not constant, we can conclude the function is not linear. Below are points for a function. Is it a linear function? 2.110.9 8.334.8 12.452.1

8. Exercise 49 – Page 287

9. Exercise 22 – Page 322

10. Exercise 22 – Page 322 - continued