1. Warm up
Do Problems 20 and 22

2. Homework Questions

3. Homework Questions

4. Use Inverse Functions (Section 6-4)
Essential Question: How do you find the inverse relation of a given function?
Assessment: Students will write a summary of how to find the inverse in their notes.

5. Key Term: Inverse relation:
A relation that interchanges the input and output values of the original relation

6. Find an equation for the inverse relation.
Example 1

7. Find an equation for the inverse relation.
Example 2 y = x + 4

8. Find an equation for the inverse relation.
Example 3 y = -2x + 7

9. Find an equation for the inverse relation.
Example 4 y = x – 1

10. Key Term
Inverse functions -
The original relation and its inverse relation, whenever both relations are functions

11. Verify that f and g are inverse functions.
Example 5

12. Verify that f and g are inverse functions.
Example 6

13. Verify that f and g are inverse functions.
Example 7

14. Find the inverse of the function.
Example 8

15. Find the inverse of the function.
Example 9

16. Find the inverse of the function.
Example 10

18. Graph the function f. Then use the graph to determine whether the inverse of f is a function.
Example 1

19. Graph the function f. Then use the graph to determine whether the inverse of f is a function.
Example 12

20. Write Your Summary ! HW- Pg. 442-443 # 3-43 (eoo) , 21