1. Today’s Agenda
 Attendance / Announcements
◦ Need TI Graphing Calculator
◦ Exam 2 – Friday 10/11
Covers Chapters 3.1 to 3.6
◦ Project Due Thur (or today,Wed)
 Review Quiz
 Sections 3.6

2. Polynomial Functions
73)( 2
xxf
26)( 24
xxxg
5
532)( xxxh
Degree of 2
Degree of 4
Degree of 5

3. Basic Graphs
3
)( xxf

4. Basic Graphs
3
)( xxf

5. Basic Graphs
4
)( xxf

6. Basic Graphs
4
)( xxf

8. End Behavior

9. End Behavior

10. End Behavior

11. End Behavior

12. End Behavior

13. Use calculator to graph

14. Graphs of Polynomials
The number of “peaks/valleys” for a
graph of a polynomial is at most n – 1,
where n is the degree of the polynomial

19. Strategy for Graphing Polynomials
• Find x-intercepts (set y=0)
– Use factoring / Zero Product Property
• Make a sign test with x-intercepts
• Find y-intercepts
• Think of End Behavior
• Find a few additional points
• Plot points and sketch graph

23. Classwork
• Page 193
•5 – 14 all
•15 – 21 odd
•23 – 26 all