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More About This Textbook
Overview
INTERMEDIATE ALGEBRA: CONNECTING CONCEPTS THROUGH APPLICATIONS shows students how to apply traditional mathematical skills in realworld contexts. The emphasis on skill building and applications engages students as they master concepts, problem solving, and communication skills. It modifies the rule of four, integrating algebraic techniques, graphing, the use of data in tables, and writing sentences to communicate solutions to application problems. The authors have developed several key ideas to make concepts real and vivid for students. First, the authors integrate applications, drawing on realworld data to show students why they need to know and how to apply math. The applications help students develop the skills needed to explain the meaning of answers in the context of the application. Second, they emphasize strong algebra skills. These skills support the applications and enhance student comprehension. Third, the authors use an eyeball bestfit approach to modeling. Doing models by hand helps students focus on the characteristics of each function type. Fourth, the text underscores the importance of graphs and graphing. Students learn graphing by hand, while the graphing calculator is used to display reallife data problems. In short, INTERMEDIATE ALGEBRA: CONNECTING CONCEPTS THROUGH APPLICATIONS takes an applicationdriven approach to algebra, using appropriate calculator technology as students master algebraic concepts and skills.
Editorial Reviews
From the Publisher
"The quality of the worked examples is first rate. I was pleased to seehow that the writers show what a graph done by hand should look like…. Above all, many of the applications were used as motivating factorsto develop the math, such as the slope."Robert Diaz, Instructor, Fullerton College"The main strength of the book is the great balance of concepts, skills,and applications …."Lenora G. Sheppard, Instructor, Atlantic Cape Community College
"The main strengths of this textbook lie with the authors' concept for a strong integration of applied math into the core of the material presentation in each section of the book. The margin notes are highly applicable and well placed, and the story problems and Concept Investigations encourage students to go beyond the operations to really understanding the functions and applications of those functions." Katherine Adams, Instructor, Eastern Michigan University
"The Concept Investigations should captivate the students' attention. Most students at this level often ask, 'When will I ever use this?' The Concept Investigations would be effective in addressing this."Mary Legner, Instructor, Riverside City College
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Meet the Author
Mark Clark graduated from California State University, Long Beach, with a Bachelor's and Master's in Mathematics. He is a fulltime Associate Professor at Palomar College and has taught there for the past 13 years. He is committed to teaching his students through applications and using technology to help them both understand the mathematics in context and communicate their results clearly. Intermediate algebra is one of his favorite courses to teach, and he continues to teach several sections of this course each year. He has collaborated with his colleague Cynthia Anfinson to write a new intermediate and beginning algebra text published by Cengage Learning—Brooks/Cole. It is an applicationsfirst approach to algebra; applications and concepts drive the material, supported by traditional skills and techniques.
Cynthia (Cindy) Anfinson graduated from UCSD's Revelle College in 1985, summa cum laude, with a Bachelor of Arts Degree in Mathematics and is a member of Phi Beta Kappa. She went to graduate school at Cornell University under the Army Science and Technology Graduate Fellowship. She graduated from Cornell in 1989 with a Master of Science Degree in Applied Mathematics. She is currently an Associate Professor of Mathematics at Palomar College and has been teaching there since 1995. Cindy Anfinson was a finalist in Palomar College's 2002 Distinguished Faculty Award.
Table of Contents
Note  Each chapter contains Summary, Review Exercises, Chapter Test, and Projects. 1. LINEAR FUNCTIONS. Solving Linear Equations. Using Data to Create Scatterplots. Using Data to Create Scatterplots. Graphical Models. Intercepts, Domain, and Range. Fundamentals of Graphing and Slope. Introduction to Graphing Functions. SlopeIntercept Form of a Line. The Meaning of Slope in an Application. Graphing Lines Using Slope and Intercept. Intercepts and Graphing. The General Form of Lines. Finding Intercepts and Their Meaning. Graphing Lines Using Intercepts. Horizontal and Vertical Lines. Finding Equations of Lines. Finding Equations of Lines. Parallel and Perpendicular Lines. Interpreting the Characteristics of a Line, a Review. Finding Linear Models. Using a Calculator to Create Scatterplots. Finding Linear Models. Functions and Function Notation. Relations and Functions. Function Notation. Writing Models in Function Notation. Domain and Range of Functions. 2. SYSTEMS OF LINEAR EQUATIONS AND INEQUALITIES. Systems of Linear Equations. Definition of Systems. Graphical and Numerical Solutions. Types of Systems. Solving Systems of Equations Using the Substitution Method. Substitution Method. Dependent and Inconsistent Systems. Solving Systems of Equations Using the Elimination Method. Elimination Method. Solving Linear Inequalities. Introduction to Inequalities. Solving Inequalities. Systems as Inequalities. Solving Inequalities Numerically and Graphically. Absolute Value Equations and Inequalities. Absolute Value Equations. Absolute Value Inequalities Involving Less Than, or Less Than or Equal To. Absolute Value Inequalities Involving Greater Than, or Greater Than or Equal To. Solving Systems of Linear Inequalities. Graphing Linear Inequalities in Two Variables. Solving Systems of Linear Inequalities. 3. EXPONENTS, POLYNOMIAL AND FUNCTIONS. Rules for Exponents. Rules for Exponents. Negative Exponents and Zero as an Exponent. Rational Exponents. Combining Functions. Defining Polynomials. Adding and Subtracting Functions. Multiplying and Dividing Functions. Composing Functions. Composing Functions. Factoring Polynomials. Factoring Using the AC Method. Factoring Using Trial and Error. Prime Polynomials. Special Factoring Techniques. Perfect Square Trinomials. Difference of Squares. Difference and Sum of Cubes. MultiStep Factorizations. 4. QUADRATIC FUNCTIONS. Quadratic Functions and Parabolas. Introduction to Quadratics and Identifying the Vertex. Identifying a Quadratic Function. Recognizing Graphs of Quadratic Functions and Indentifying the Vertex. Solving Quadratics Using the Graph. Graphing Quadratics in Vertex Form. Vertex Form. Graphing Quadratics in Vertex Form. Finding Quadratic Models. Finding Quadratic Models. Domain and Range. Solving Quadratic Equations by Square Root Property and Completing the Square. Solving from Vertex Form. Completing the Square. Converting to Vertex Form. Graphing from Vertex From with xIntercepts. Solving Quadratic Equations by Factoring. Solving by Factoring. Finding an Equation from the Graph. Solving Quadratic Equations Using the Quadratic Formula. Determining Which Algebraic Method to Use. Solving Systems of Equations with Quadratics. Graphing Quadratics from Standard Form. Graphing from Standard Form. Graphing Quadratic Inequalities in Two Variables. 5. EXPONENTIAL FUNCTIONS. Exponential Functions: Patterns of Growth and Decay. Exploring Exponential Growth and Decay. Recognizing Exponential Patterns. Solving Equations Using Exponent Rules. Recap of the Rules for Exponents. Solving Simple Exponential Equations. Solve Power Equations. Graphing Exponential Functions. Exploring Graphs of Exponentials. Domain and Range of Exponential Functions. Finding Exponential Models. Finding Exponential Models. Domain and Range for Exponential Models. Exponential Growth and Decay Rates and Compounding Interest. Exponential Growth and Decay Rates. Compounding Interest. 6. LOGARITHMIC FUNCTIONS. Functions and Their Inverses. Introduction to Inverse Functions. OnetoOne Functions. Logarithmic Functions. Definition of Logarithms. Basic Rules for Logarithms. Change of Base Formula. Inverses. Solving Simple Logarithmic Equations. Graphing Logarithmic Functions. Graphing Logarithmic Functions. Domain and Range of Logarithmic Functions. Properties of Logarithms. Properties of Logarithms. Solving Exponential Equations. Solving Exponential Equations. Compounding Interest. Solving Logarithmic Equations. Applications of Logarithms. Solving Other Logarithmic Equations. 7. RATIONAL FUNCTIONS. Rational Functions and Variation. Rational Functions. Direct and Inverse Variation. Domain. Simplifying Rational Expressions. Simplifying Rational Expressions. Long Division of Polynomials. Synthetic Division. Multiplying and Dividing Rational Expressions. Multiplying Rational Expressions. Dividing Rational Expressions. Adding and Subtracting Rational Expressions. Least Common Denominator. Adding Rational Expressions. Subtracting Rational Expressions. Simplifying Complex Fractions. Solving Rational Equations. 8. RADICAL FUNCTIONS. Radical Functions. Modeling Data with Radical Functions. Domain and Range of Radical Functions. Simplifying, Adding, and Subtracting Radicals. Square Roots and Higher Roots. Simplifying Radicals. Adding and Subtracting Radicals. Multiplying and Dividing Radicals. Multiplying Radicals. Dividing Radicals and Rationalizing the Denominator. Conjugates. Solving Radical Equations. Solving Equations with Square Roots. Solving Equations with More than One Square Root. Solving Equations with Higher Order Radicals. Complex Numbers. Definition of Imaginary and Complex Numbers. Operations with Complex Numbers. Solving Equations with Complex Solutions. 9. CONICS, SEQUENCES AND SERIES. Parabolas and Circles. Introduction to Conic Sections. Equations and Graphs of Circles. Ellipses and Hyperbolas. Equations and Graphs of the Ellipse. Equations and Graphs of the Hyperbola. Arithmetic Sequences. Introduction to Sequences. Arithmetic Sequences. Geometric Sequences. Geometric Sequences. Series. Introduction to Series. Arithmetic Series. Geometric Series. APPENDIX A. Basic Algebra Review. Review of Number Systems. Operations with Integers. Operations with Rationals. Review of Solving Linear Equations. Scientific Notation. Interval Notation. APPENDIX B. Matrices. Solving Systems of Three Equations. Introduction to Matrices. Matrix Row Reduction. Solving Systems with Matrices. Using Systems of Three Equations to Model Quadratics. APPENDIX C. Using the Graphing Calculator. Steps for Using the Graphing Calculator. Troubleshooting Error Messages. APPENDIX D. Answers to OddNumbered Exercises. APPENDIX E. Answers to the Example Practice Problems.