Algebra for College Students

Balancing skills and concepts

The Lial Developmental Algebra Series  uses a teacherly writing style and a careful blend of skills development and conceptual questions to meet the unique needs of the developmental math student. The author team takes advantage of experiences in the classroom and an editing eye to offer one of the most well-rounded series available, written with the developmental learner in mind. In this revision, the team retains their hallmark writing style, and provides new features and resources to optimize student preparedness and conceptual understanding. The Lial program provides students with the perfect balance of skills and concepts for a student-friendly approach to math.

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• 0135160669 / 9780135160664 Algebra for College Students
• 0135168112 / 9780135168110 MyLab Math with Pearson eText - Standalone Access Card - for Algebra for College Students

Marge Lial (late) was always interested in math; it was her favorite subject in the first grade! Marge's intense desire to educate both her students and herself has inspired the writing of numerous best-selling textbooks. Marge, who received Bachelor's and Master's degrees from California State University at Sacramento, was affiliated with American River College. An avid reader and traveler, her travel experiences often found their way into her books as applications, exercise sets, and feature sets. Her interest in archeology led to trips to various digs and ruin sites, producing some fascinating problems for her textbooks involving such topics as the building of Mayan pyramids and the acoustics of ancient ball courts in the Yucatan.

When John Hornsby enrolled as an undergraduate at Louisiana State University, he was uncertain whether he wanted to study mathematics education or journalism. His ultimate decision was to become a teacher, but after twenty-five years of teaching at the high school and university levels and fifteen years of writing mathematics textbooks, both of his goals have been realized. His love for both teaching and for mathematics is evident in his passion for working with students and fellow teachers as well. His specific professional interests are recreational mathematics, mathematics history, and incorporating graphing calculators into the curriculum. John's personal life is busy as he devotes time to his family (wife Gwen, and sons Chris, Jack, and Josh), and has been an avid baseball fan all of his life. John's other hobbies include numismatics (the study of coins) and record collecting. He loves the music of the 1960s and has an extensive collection of the recorded works of Frankie Valli and the Four Seasons.

A native Midwesterner, Terry McGinnis received her Bachelor’s of Science in Elementary Education with a concentration in Mathematics from Iowa State University. She has taught elementary and middle school mathematics, and developed and implemented the curriculum used with her students. Terry has been involved in college mathematics publishing for over 20 years, working with a variety of authors on textbooks in both developmental mathematics and precalculus. After working behind the scenes on many of the Lial/Hornsby textbooks and supplements for over 10 years, Terry joined Margaret Lial and John Hornsby in 2002 as coauthor of their developmental mathematics series. When not working, Terry enjoys spinning at a local health club, walking, and reading fiction. She is the devoted mother of two sons, Andrew and Tyler.

Callie Daniels has always had a passion for learning mathematics and brings that passion into the classroom with her students. She attended the University of the Ozarks where she earned a bachelor’s degree in Secondary Mathematics Education. She has two master’s degrees: one in Applied Mathematics and Statistics from the University of Missouri—Rolla, the second in Adult Education from the University of Missouri—St. Louis. Her professional interests include improving success in the community college mathematics sequence, using technology to enhance students’ understanding of mathematics, and creating materials that support classroom teaching and student understanding. She is able to pursue these interests as a contributor on the Lial Developmental Math series, and a co-author on the Precalculus series.

Study Skill 1: Using Your Math Text

Study Skill 2: Reading Your Math Text

Study Skill 3: Taking Lecture Notes

Study Skill 4: Completing Your Homework

Study Skill 5: Using Study Cards

Study Skill 6: Managing Your Time

Study Skill 7: Reviewing a Chapter

Study Skill 8: Taking Math Tests

Study Skill 9: Analyzing Your Test Results

Study Skill 10: Preparing for Your Math Final

R. Review of the Real Number System
R.1 Fractions, Decimals, and Percents

R.2 Basic Concepts from Algebra
R.3 Operations on Real Numbers
R.3 Exponents, Roots, and Order of Operations
R.4 Properties of Real Numbers
            Chapter R Summary
            Chapter R Test

1. Linear Equations, Inequalities, and Applications
1.1 Linear Equations in One Variable
1.2 Formulas and Percent
1.3 Applications of Linear Equations
1.4 Further Applications of Linear Equations
            Summary Exercises: Applying Problem-Solving Techniques
1.5 Linear Inequalities in One Variable
1.6 Set Operations and Compound Inequalities
1.7 Absolute Value Equations and Inequalities
            Summary Exercises: Solving Linear and Absolute Value Equations and Inequalities
            Study Skills: Reviewing a Chapter
            Chapter 1 Summary
            Chapter 1 Review Exercises
            Chapter 1 Mixed Review Exercises
            Chapter 1 Test

            Chapters R and 1 Cumulative Review Exercises

2. Linear Equations, Graphs, and Functions
2.1 Linear Equations in Two Variables
2.2 The Slope of a Line
2.3 Writing Equations of Lines
            Summary Exercises: Finding Slopes and Equations of Lines
2.4 Linear Inequalities in Two Variables
2.5 Introduction to Relations and Functions
2.6 Function Notation and Linear Functions
            Chapter 2 Summary
            Chapter 2 Review Exercises
            Chapter 2 Mixed Review Exercises
            Chapter 2 Test
            Chapters R---2 Cumulative Review Exercises

3. Systems of Linear Equations
3.1 Systems of Linear Equations in Two Variables
3.2 Systems of Linear Equations in Three Variables
3.3 Applications of Systems of Linear Equations
            Chapter 3 Summary
            Chapter 3 Review Exercises
            Chapter 3 Mixed Review Exercises
            Chapter 3 Test
            Chapters R–3 Cumulative Review Exercises

4. Exponents, Polynomials, and Polynomial Functions
4.1 Integer Exponents and Scientific Notation
4.2 Adding and Subtracting Polynomials
4.3 Polynomial Functions, Graphs, and Composition
4.4 Multiplying Polynomials
4.5 Dividing Polynomials
            Chapter 4 Summary
            Chapter 4 Review Exercises
            Chapter 4 Mixed Review Exercises
            Chapter 4 Test
            Chapters R–4 Cumulative Review Exercises

5. Factoring
5.1 Greatest Common Factors and Factoring by Grouping
5.2 Factoring Trinomials
5.3 Special Factoring
5.4 A General Approach to Factoring
5.5 Solving Equations by the Zero-Factor Property
            Chapter 5 Summary
            Chapter 5 Review Exercises
            Chapter 5 Mixed Review Exercises
            Chapter 5 Test
            Chapters R–5 Cumulative Review Exercises

6. Rational Expressions and Functions
6.1 Rational Expressions and Functions; Multiplying and Dividing
6.2 Adding and Subtracting Rational Expressions
6.3 Complex Fractions
6.4 Equations with Rational Expressions and Graphs
            Summary Exercises: Simplifying Rational Expressions vs. Solving Rational Equations
6.5 Applications of Rational Expressions
6.6 Variation
            Chapter 6 Summary
            Chapter 6 Review Exercises
            Chapter 6 Mixed Review Exercises
            Chapter 6 Test
            Chapters R–6 Cumulative Review Exercises

7. Roots, Radicals, and Root Functions
7.1 Radical Expressions and Graphs
7.2 Rational Exponents
7.3 Simplifying Radicals, the Distance Formula, and Circles
7.4 Adding and Subtracting Radical Expressions
7.5 Multiplying and Dividing Radical Expressions
            Summary Exercises: Performing Operations with Radicals and Rational Exponents
7.6 Solving Equations with Radicals
7.7 Complex Numbers
            Chapter 7 Summary
            Chapter 7 Review Exercises
            Chapter 7 Mixed Review Exercises
            Chapter 7 Test
            Chapters R–7 Cumulative Review Exercises

8. Quadratic Equations and Inequalities
8.1 The Square Root Property and Completing the Square
8.2 The Quadratic Formula
8.3 Equations That Lead to Quadratic Methods
            Summary Exercises: Applying Methods for Solving Quadratic Equations
8.4 Formulas and Further Applications
8.5 Polynomial and Rational Inequalities
            Chapter 8 Summary
            Chapter 8 Review Exercises
            Chapter 8 Mixed Review Exercises
            Chapter 8 Test
            Chapters R–8 Cumulative Review Exercises

9. Additional Graphs of Functions and Relations
9.1 Review of Operations and Composition
9.2 Graphs of Quadratic Functions
9.3 More About Parabolas and Their Applications
9.4 Symmetry; Increasing and Decreasing Functions
9.5 Piecewise Linear Functions
            Chapter 9 Summary
            Chapter 9 Review Exercises
            Chapter 9 Mixed Review Exercises
            Chapter 9 Test
            Chapters R–9 Cumulative Review Exercises

10. Inverse, Exponential, and Logarithmic Functions
10.1 Inverse Functions
10.2 Exponential Functions
10.3 Logarithmic Functions
10.4 Properties of Logarithms
10.5 Common and Natural Logarithms
10.6 Exponential and Logarithmic Equations; Further Applications
            Chapter 10 Summary
            Chapter 10 Review Exercises
            Chapter 10 Mixed Review Exercises
            Chapter 10 Test
            Chapters R–10 Cumulative Review Exercises

11. Polynomial and Rational Functions
11.1 Zeros of Polynomial Functions (I)
11.2 Zeros of Polynomial Functions (II)
11.3 Graphs and Applications of Polynomial Functions
            Summary Exercises: Examining Polynomial Functions and Graphs
11.4 Graphs and Applications of Rational Functions
            Chapter 11 Summary
            Chapter 11 Review Exercises
            Chapter 11 Mixed Review Exercises
            Chapter 11 Test
            Chapters R–11 Cumulative Review Exercises

12. Conic Sections and Nonlinear Systems
12.1 Circles Revisited and Ellipses
12.2 Hyperbolas and Functions Defined by Radicals
12.3 Nonlinear Systems of Equations
12.4 Second-Degree Inequalities, Systems of Inequalities, and Linear Programming
            Chapter 12 Summary
            Chapter 12 Review Exercises
            Chapter 12 Mixed Review Exercises
            Chapter 12 Test
            Chapters R–12 Cumulative Review Exercises

13. Further Topics in Algebra
13.1 Sequences and Series
13.2 Arithmetic Sequences
13.3 Geometric Sequences
13.4 The Binomial Theorem
13.5 Mathematical Induction
13.6 Counting Theory
13.7 Basics of Probability
            Chapter 13 Summary
            Chapter 13 Review Exercises
            Chapter 13 Mixed Review Exercises
            Chapter 13 Test
            Chapters R–13 Cumulative Review Exercises

Appendix A: Solving Systems of Linear Equations by Matrix Methods
Appendix B: Determinants and Cramer’s Rule
Appendix C: Properties of Matrices
Appendix D: Matrix Inverses

Photo Credits
Answers to Selected Exercises
Index