Beginning Algebra, 11th Edition

Recreational fishing is big business in the United States. In 2006, nearly 40 million

anglers generated over $45.3 billion in retail sales and had a $125.0 billion impact

on the U.S. economy. The sportfishing industry created employment for over one

million people. If sportfishing were a corporation, it would rank 47th on the 2007

Fortune 500 list of largest American companies based on total sales, ahead of such

global giants as Time Warner, IBM, and Microsoft. More Americans fish than play

golf and tennis combined. (Source:American Sportfishing Association.)

In Example 6of Section 9.1,we apply the square root property,a topic of this

chapter, to a formula for calculating the length of a bass.

Quadratic Equations

9.1 Solving Quadratic

Equations by the

Square Root

Property

9.2 Solving Quadratic

Equations by

Completing the

Square

9.3 Solving Quadratic Equations by the Quadratic Formula

Summary Exercises on
Quadratic Equations

9.4 Complex Numbers

9.5 More on Graphing Quadratic Equations; Quadratic Functions

Quadratic Equations;

Quadratic Functions

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CHAPTER

9