CHAPTER 1
FUNDAMENTALS
1.1 1.2
Real Numbers 1 Exponents and Radicals 6
1.3
Algebraic Expressions 13
1.4
Rational Expressions 19
1.5
Equations 27
1.6
Complex Numbers 36
1.7
Modeling with Equations 39
1.8
Inequalities 50
1.9
The Coordinate Plane; Graphs of Equations; Circles 72
1.10 1.11
Lines 91 Solving Equations and Inequalities Graphically 101
1.12
Modeling Variation 111 Chapter 1 Review 115 Chapter 1 Test 132
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FOCUS ON MODELING: Fitting Lines to Data 138 Errata in Exercises and Answers in First Printing 141