Practical Algebra: A Self–Teaching Guide, Third Ed ition: Wiley Self-Teaching Guides

Acknowledgments vi Introduction vii 1 Basic Concepts 1 2 Fractions 21 3 Linear Equations 37 4 Ratios and Proportions 79 5 Linear Inequalities 111 6 Functions and Graphs with Two Variables 141 7 Linear Functions and their Graphs 173 8 Operations with Polynomials 233 9 Quadratic Functions 255 10 Exponential Functions 335 11 Sequences 353 12 Summary of Functions 373 13 Statistics 419 Formulas 477 Glossary of Mathematical Symbols 479 Glossary of Mathematical Terms 483 About the Authors 489 Index 491

Bobson WONG has been teaching math in New York City public high schools since 2005. He is a four-time recipient of the Math for America Master Teacher Fellowship and is a New York State Master Teacher. He is the co-author of The Math Teacher's Toolbox: Hundreds of Practical Ideas to Support Your Students. Larisa BUKALOV has been teaching math in New York City public high schools since 1998. She has received numerous awards in mathematics education, including the Math for America Master Teacher Fellowship. In addition to being the co-author of The Math Teacher's Toolbox, she also teaches courses in mathematics literacy methods at Touro University. Steve SLAVIN has a PhD in economics from New York University, and taught economics for thirty-one years at New York Institute of Technology, Brooklyn College, and New Jersey's Union County College of Mathematics.