Zeros of a Polynomial Function Shortcuts?

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Dr. Claude S. Moore Danville Community College

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Presentation transcript:

Zeros of a Polynomial Function Shortcuts? Chapter 2 Section 5 Zeros of a Polynomial Function Shortcuts?

Descartes’s Rule of Signs The number of positive real zeros of a function is either equal to the number of variations in the sign of f(x) or less than that number by an even integer The number of negative real zeros of a function is either equal to the number of variations in sign of f(-x) or less than that number by an even integer

Examples: Find p and q 2. 4.) 1. 3.)

Upper and Lower Bound Rules- Pg 177

Intermediate Value Theorem Read page 146

Classwork Page 181 # 79-86 Wkst 2.5 # 1-8