Section 4.1 Polynomial Functions and Models.

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Presentation transcript:

Section 4.1 Polynomial Functions and Models

Summary of the Properties of the Graphs of Polynomial Functions

Find a polynomial of degree 3 whose zeros are -4, -2, and 3.

For the polynomial, list all zeros and their multiplicities. 2 is a zero of multiplicity 1 because the exponent on the factor x – 2 is 1. –1 is a zero of multiplicity 3 because the exponent on the factor x + 1 is 3. 3 is a zero of multiplicity 4 because the exponent on the factor x – 3 is 4.

y = 4(x - 2)

Figure 16 (a)

Figure 16 (b)

Figure 16 (c)

Figure 16 (d)

The polynomial is degree 3 so the graph can turn at most 2 times.