# Ms Karma Hamilton

Topics: Real number, Integer, Rational number Pages: 728 (193820 words) Published: March 2, 2013
Annotated Instructor’s Edition

Elementary and Intermediate Algebra
Third Edition

George Woodbury
College of the Sequoias

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ISBN-10: 0-321-66548-1 ISBN-13: 978-0-321-66548-5

To Tina, Dylan, and Alycia You make everything meaningful and worthwhile— yesterday, today, and tomorrow.

Contents
Preface viii

1

Review of Real Numbers

1

1.1 Integers, Opposites, and Absolute Values 1 1.2 Operations with Integers 6 1.3 Fractions 15 1.4 Operations with Fractions 20 1.5 Decimals and Percents 27 1.6 Basic Statistics 32 1.7 Exponents and Order of Operations 43 1.8 Introduction to Algebra 47 Chapter 1 Summary 55 Chapter 1 Review 60 Chapter 1 Test 62 Mathematicians in History 62

2

Linear Equations

63

2.1 Introduction to Linear Equations 63 2.2 Solving Linear Equations: A General Strategy 70 2.3 Problem Solving; Applications of Linear Equations 79 2.4 Applications Involving Percentages; Ratio and Proportion 2.5 Linear Inequalities 101 Chapter 2 Summary 111 Chapter 2 Review 115 Chapter 2 Test 116 Mathematicians in History 117

90

3

Graphing Linear Equations

118

3.1 The Rectangular Coordinate System; Equations in Two Variables 118 3.2 Graphing Linear Equations and Their Intercepts 128 3.3 Slope of a Line 140 3.4 Linear Functions 153 3.5 Parallel and Perpendicular Lines 162 3.6 Equations of Lines 168 3.7 Linear Inequalities 176 Chapter 3 Summary 187 Chapter 3 Review 193 Chapter 3 Test 196 Mathematicians in History 197

4

Systems of Equations
4.1 4.2 4.3 4.4 4.5

198

Systems of Linear Equations; Solving Systems by Graphing 198 Solving Systems of Equations by Using the Substitution Method 207 Solving Systems of Equations by Using the Addition Method 214 Applications of...