1. If f(x) = 4x – 3, find each function value.
Bell Ringer
If f(x) = 4x – 3, find each function value.
f(3)
f(5)
f(-8)
f(12)

2. Remember
Test is on Monday, Dec. 8!!!!

3. Homework Check

4. Homework Check

5. Homework Check

6. Homework Check

7. Section 8.5 Constant Rate of Change and Direct Variation
R drive > Key > Week 17 > Thursday > 8.5 PowerPoint File > Save As > Math > Week 17 >

8. Vocabulary
Constant Rate of Change – The rates of change between any two data points in a linear relationship are the same or constant
Direct Variation- A relationship such that as x increases in value, y increases or decreases at a constant rate
Constant of Variation – A constant ratio or unit rate of a proportion
Proportional Relationship – A relationship in which the ratios of related terms are equal

9. Constant Rate of Change

10. Constant Rate of Change

11. Constant Rate of Change

12. Example 1 Find a Constant Rate of Change

13. Example 2 Find a Constant Rate of Change

14. Notes

15. Notes

16. Example 3 Use Graphs to Identify Proportional Linear Relationships

17. Example 4 Use Graphs to Identify Proportional Linear Relationships

18. Notes

19. Notes

20. Example 5 Use Direct Variation to Solve Problems

21. Example 5 Continued Use Direct Variation to Solve Problems

22. Example 6 Use Direct Variation to Solve Problems

23. Notes

24. Homework Section 8.5 #1-8

25. Homework Section 8.5 #1-8

26. Homework Section 8.5 #1-8

27. Homework Section 8.5 #1-8