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# Lecture 3.6 bt

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### Lecture 3.6 bt

1. 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. 2. Polynomial Functions 73)( 2 xxf 26)( 24 xxxg 5 532)( xxxh Degree of 2 Degree of 4 Degree of 5
3. 3. Basic Graphs 3 )( xxf
4. 4. Basic Graphs 3 )( xxf
5. 5. Basic Graphs 4 )( xxf
6. 6. Basic Graphs 4 )( xxf
7. 7. End Behavior
8. 8. End Behavior
9. 9. End Behavior
10. 10. End Behavior
11. 11. End Behavior
12. 12. Use calculator to graph
13. 13. 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
14. 14. 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
15. 15. Classwork • Page 193 •5 – 14 all •15 – 21 odd •23 – 26 all