Marge Lial became interested in math at an early age–it was her favorite subject in the first grade! Marge's intense desire to educate both her students and herself 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. She was particularly interested in archeology; trips to various digs and ruin sites produced 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. We dedicate the new editions of the paperback developmental math series to Marge in honor of her contributions to the field in which she helped thousands of students succeed.
Stan Salzman is a long time resident of Sacramento, California. Stan has taught at American River College for many years, where he was a member of the business department. He is the author of Business Math and Essential Math, published by Pearson Education, Inc., and is coauthor of Basic Math.
Diana Hestwood lives in Minnesota and has taught at Metropolitan Community College in Minneapolis for two decades. She has done research on the student brain and is an expert on study skills. She is the author of Lial/Hestwood’s Prealgebra and coauthor of Lial/Salzman/Hestwood’s Basic Math and Lial/Hestwood/Hornsby/McGinnis’s Prealgebra and Introductory Algebra.
R. Review of the Real Number System
R.1 Basic Concepts
R.2 Operations on Real Numbers
R.3 Exponents, Roots, and Order of Operations
R.4 Properties of Real Numbers
1. Linear Equations 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
2. Linear Inequalities and Absolute Value
2.1 Linear Inequalities in One Variable
2.2 Set Operations and Compound Inequalities
2.3 Absolute Value Equations and Inequalities
3. Graphs, Linear Equations, and Functions
3.1 The Rectangular Coordinate System
3.2 The Slope of a Line
3.3 Linear Equations in Two Variables
3.4 Linear Inequalities in Two Variables
3.5 Introduction to Relations and Functions
3.6 Function Notation and Linear Functions
4. Systems of Linear Equations
4.1 Systems of Linear Equations in Two Variables
4.2 Systems of Linear Equations in Three Variables
4.3 Applications of Linear Systems of Equations
4.4 Solving Linear Systems of Equations by Matrix Methods
5. Exponents, Polynomials, and Polynomial Functions
5.1 Integer Exponents and Scientific Notation
5.2 Adding and Subtracting Polynomials
5.3 Polynomial Functions
5.4 Multiplying Polynomials
5.5 Dividing Polynomials
6. Factoring
6.1 Greatest Common Factors; Factoring by Grouping
6.2 Factoring Trinomials
6.3 Special Factoring
6.4 A General Approach to Factoring
6.5 Solving Equations by Factoring
7. Rational Expressions
7.1 Rational Expressions and Functions; Multiplying and Dividing
7.2 Adding and Subtracting Rational Expressions
7.3 Complex Fractions
7.4 Equations with Rational Expressions and Graphs
7.5 Applications of Rational Expressions
7.6 Variation
8. Roots, Radicals, and Root Functions
8.1 Rational Expressions and Graphs
8.2 Rational Exponents
8.3 Simplifying Radical Expressions
8.4 Adding and Subtracting Radical Expressions
8.5 Multiplying and Dividing Radical Expressions
8.6 Solving Equations with Radicals
8.7 Complex Numbers
9. Quadratic Equations, Inequalities, and Functions
9.1 The Square Root Property and Completing the Square
9.2 The Quadratic Formula
9.3 Equations Quadratic in Form
9.4 Formulas and Applications
9.5 Graphs of Quadratic Functions
9.6 More About Parabolas and Their Applications
9.7 Polynomial and Rational Inequalities
10. Inverse, Exponential, and Logarithmic Functions
10.1 Composition of Functions
10.2 Inverse Functions
10.3 Exponential Functions
10.4 Logarithmic Functions
10.5 Properties of Logarithms
10.6 Common and Natural Logarithms
10.7 Exponential and Logarithmic Equations and Their Applications
11. Nonlinear Functions, Conic Sections, and Nonlinear Systems
11.1 Additional Graphs of Functions
11.2 The Circle and the Ellipse
11.3 The Hyperbola, and Other Functions Defined by Radicals
11.4 Nonlinear Systems of Equations
11.5 Second-Degree Inequalities and Systems of Inequalities