College Algebra

About our authors Marvin Bittinger has taught math at the university level for more than 38 years, and he is now Professor Emeritus of mathematics education at Indiana University - Purdue University. Professor Bittinger has authored numerous textbooks on topics ranging from basic mathematics to algebra & trigonometry to applied calculus. He received his BA in mathematics from Manchester College and his PhD in mathematics education from Purdue University. Special honors include Distinguished Visiting Professor at the United States Air Force Academy. His hobbies include hiking in Utah, baseball, golf and bowling. Professor Bittinger has also had the privilege of speaking at many mathematics conventions, most recently giving a lecture entitled “Baseball and Mathematics.” In addition, he also has an interest in philosophy and theology, particularly apologetics. Professor Bittinger currently lives in Carmel, Indiana with his wife Elaine. He has 2 grown and married sons, Lowell and Chris, and 4 granddaughters.Judy Beecher has an undergraduate degree in mathematics from Indiana University and a graduate degree in mathematics from Purdue University. She has taught at both the high school and college levels, with many years of developmental math and precalculus teaching experience at Indiana University - Purdue University Indianapolis. In addition to her career in textbook publishing she spends time traveling, enjoying her grandchildren, and promoting charity projects for a children’s camp.David Ellenbogen has taught math at the college level for nearly 30 years, spending most of that time in the Massachusetts and Vermont community college systems, where he has served on both curriculum and developmental math committees. He has taught at St. Michael’s College and The University of Vermont. Professor Ellenbogen has been active in the American Mathematical Association of Two-Year Colleges (AMATYC) since 1985, having served on its Developmental Mathematics Committee and as a delegate. He has been a member of the Mathematical Association of America (MAA) since 1979. He has authored dozens of texts on topics ranging from prealgebra to calculus and has delivered lectures on the use of language in mathematics. Professor Ellenbogen received his bachelor’s degree in mathematics from Bates College and his master’s degree in community college mathematics education from The University of Massachusetts - Amherst. In his spare time, he enjoys playing piano, biking, hiking, skiing and volunteer work. He currently serves on the boards of the Vermont Sierra Club and the Vermont Bicycle Pedestrian Coalition. He has 2 sons, Monroe and Zachary.Judy Penna received her undergraduate degree in mathematics from Kansas State University and her graduate degree in mathematics from the University of Illinois. Since then, she has taught at Indiana University - Purdue University Indianapolis and at Butler University, and continues to focus on writing quality textbooks for undergraduate mathematics students. In her free time she likes to travel, read, knit, and spend time with her children.

• Graphs, Functions, and Models 1.1. Introduction to Graphing Visualizing the Graph1.2. Functions and Graphs1.3. Linear Functions, Slope, and Applications Visualizing the GraphMid-Chapter Mixed Review1.4. Equations of Lines and Modeling1.5. Linear Equations, Functions, Zeros, and Applications1.6. Solving Linear InequalitiesSummary and ReviewReview ExercisesChapter TestMore on Functions 2.1. Increasing, Decreasing, and Piecewise Functions; Applications2.2. The Algebra of Functions2.3. The Composition of Functions Mid-Chapter Mixed Review2.4. Symmetry2.5. Transformations Visualizing the Graph2.6. Variation and ApplicationsSummary and ReviewReview ExercisesChapter TestQuadratic Functions and Equations; Inequalities 3.1. The Complex Numbers3.2. Quadratic Equations, Functions, Zeros, and Models3.3. Analyzing Graphs of Quadratic Functions Visualizing the GraphMid-Chapter Mixed Review3.4. Solving Rational Equations and Radical Equations3.5. Solving Equations and Inequalities with Absolute Value Summary and ReviewReview ExercisesChapter TestPolynomial Functions and Rational Functions 4.1. Polynomial Functions and Modeling4.2. Graphing Polynomial Functions Visualizing the Graph4.3. Polynomial Division; The Remainder Theorem and the Factor Theorem Mid-Chapter Mixed Review4.4. Theorems about Zeros of Polynomial Functions4.5. Rational Functions Visualizing the Graph4.6. Polynomial Inequalities and Rational Inequalities Study GuideReview ExercisesChapter TestExponential Functions and Logarithmic Functions 5.1. Inverse Functions5.2. Exponential Functions and Graphs5.3. Logarithmic Functions and Graphs Visualizing the GraphMid-Chapter Mixed Review5.4. Properties of Logarithmic Functions5.5. Solving Exponential Equations and Logarithmic Equations5.6. Applications and Models: Growth and Decay; Compound Interest 364 Study GuideReview ExercisesChapter TestSystems of Equations and Matrices 6.1. Systems of Equations in Two Variables Visualizing the Graph6.2. Systems of Equations in Three Variables6.3. Matrices and Systems of Equations6.4. Matrix Operations Mid-Chapter Mixed Review6.5. Inverses of Matrices6.6. Determinants and Cramer’s Rule6.7. Systems of Inequalities and Linear Programming6.8. Partial Fractions Study GuideReview ExercisesChapter TestConic Sections 7.1. The Parabola7.2. The Circle and the Ellipse Mid-Chapter Mixed Review7.3. The Hyperbola7.4. Nonlinear Systems of Equations and Inequalities Visualizing the GraphStudy GuideReview ExercisesChapter TestSequences, Series, and Combinatorics 8.1. Sequences and Series8.2. Arithmetic Sequences and Series8.3. Geometric Sequences and Series Visualizing the Graph8.4. Mathematical Induction Mid-Chapter Mixed Review8.5. Combinatorics: Permutations8.6. Combinatorics: Combinations8.7. The Binomial Theorem8.8. Probability Study GuideReview ExercisesChapter TestPhoto Credits Answers Additional Instructor’s Answers Index Index of Applications