# Graphical Approach to College Algebra, A, 7th edition

• John Hornsby,
• Margaret L. Lial,
• Gary K. Rockswold

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## Overview

A Graphical Approach to College Algebra covers functions through a consistent, 4-part process. The authors ask you to 1: [See] Examine the nature of the graph; 2: Solve a typical equation analytically and graphically; 3: Solve the related inequality analytically and graphically; 4: Apply analytic and graphical methods to solve an application. This proven approach fosters a deep visual and graphical understanding of math, solidifying a stronger connection to the mathematical world around us. Careful chapter layouts, exercises, review questions and chapter features give you a comprehensive roadmap for success in the course. The 7th Edition adds a new Unifying the Function feature after introducing each major class of functions; updates data throughout with new topics including active Twitter users, organic food sales and more; adds nearly 500 new or updated exercises; and much more.

ISBN-13: 9780137399918

Subject: Precalculus, College Algebra & Trigonometry

Category: College Algebra

## Overview

1. Linear Functions, Equations, and Inequalities
• 1.1 Real Numbers and the Rectangular Coordinate System
• 1.2 Introduction to Relations and Functions
• Reviewing Basic Concepts (Sections 1.1–1.2)
• 1.3 Linear Functions
• 1.4 Equations of Lines and Linear Models
• Reviewing Basic Concepts (Sections 1.3–1.4)
• 1.5 Linear Equations and Inequalities
• Unifying Linear Functions
• 1.6 Applications of Linear Functions
• Reviewing Basic Concepts (Sections 1.5–1.6)
• Summary
• Review Exercises
• Test
2. Analysis of Graphs of Functions
• 2.1 Graphs of Basic Functions and Relations; Symmetry
• 2.2 Vertical and Horizontal Shifts of Graphs
• 2.3 Stretching, Shrinking, and Reflecting Graphs
• Reviewing Basic Concepts (Sections 2.1–2.3)
• 2.4 Absolute Value Functions
• Unifying Absolute Value Functions
• 2.5 Piecewise-Defined Functions
• 2.6 Operations and Composition
• Reviewing Basic Concepts (Sections 2.4–2.6)
• Summary
• Review Exercises
• Test
• 3.1 Complex Numbers
• 3.2 Quadratic Functions and Graphs
• Reviewing Basic Concepts (Sections 3.1–3.2)
• 3.3 Quadratic Equations and Inequalities
• 3.4 Applications of Quadratic Functions and Models
• Reviewing Basic Concepts (Sections 3.3–3.4)
• Summary
• Review Exercises
• Test
4. Polynomial Functions of Higher Degree
• 4.1 Graphs of Polynomial Functions
• 4.2 Topics in the Theory of Polynomial Functions (I)
• Reviewing Basic Concepts (Sections 4.1–4.2)
• 4.3 Topics in the Theory of Polynomial Functions (II)
• 4.4 Polynomial Equations, Inequalities, Applications, and Models
• Reviewing Basic Concepts (Sections 4.3–4.4)
• Unifying Polynomial Functions
• Summary
• Review Exercises
• Test
5. Rational, Power, and Root Functions
• 5.1 Rational Functions and Graphs (I)
• 5.2 Rational Functions and Graphs (II)
• 5.3 Rational Equations, Inequalities, Models, and Applications
• 5.4 Functions Defined by Powers and Roots
• 5.5 Equations, Inequalities, and Applications Involving Root Functions
• Reviewing Basic Concepts (Sections 5.4–5.5)
• Unifying Root Functions
• Summary
• Review Exercises
• Test
6. Inverse, Exponential, and Logarithmic Functions
• 6.1 Inverse Functions
• 6.2 Exponential Functions
• 6.3 Logarithms and Their Properties
• 6.4 Logarithmic Functions
• 6.5 Exponential and Logarithmic Equations and Inequalities
• 6.6 Further Applications and Modeling with Exponential and Logarithmic Functions
• Reviewing Basic Concepts (Sections 6.4–6.6)
• Summary
• Review Exercises
• Test
7. Systems and Matrices
• 7.1 Systems of Equations
• 7.2 Solution of Linear Systems in Three Variables
• 7.3 Solution of Linear Systems by Row Transformations
• Reviewing Basic Concepts (Sections 7.1–7.3)
• 7.4 Matrix Properties and Operations
• 7.5 Determinants and Cramer’s Rule
• 7.6 Solution of Linear Systems by Matrix Inverses
• Reviewing Basic Concepts (Sections 7.4–7.6)
• 7.7 Systems of Inequalities and Linear Programming
• 7.8 Partial Fractions
• Reviewing Basic Concepts (Sections 7.7–7.8)
• Summary
• Review Exercises
• Test
8. Conic Sections, Nonlinear Systems, and Parametric Equations
• 8.1 Circles Revisited and Parabolas
• 8.2 Ellipses and Hyperbolas
• Reviewing Basic Concepts (Sections 8.1–8.2)
• 8.3 The Conic Sections and Nonlinear Systems
• 8.4 Introduction to Parametric Equations
• Reviewing Basic Concepts (Sections 8.3–8.4)
• Summary
• Review Exercises
• Test
9. Further Topics in Algebra
• 9.1 Sequences and Series
• 9.2 Arithmetic Sequences and Series
• 9.3 Geometric Sequences and Series
• Reviewing Basic Concepts (Sections 9.1–9.3)
• 9.4 Counting Theory
• 9.5 The Binomial Theorem
• Reviewing Basic Concepts (Sections 9.4–9.5)
• 9.6 Mathematical Induction
• 9.7 Probability
• Reviewing Basic Concepts (Sections 9.6–9.7)
• Summary
• Review Exercises
• Test
1. Review: Basic Algebraic Concepts
• R.2 Review of Exponents and Polynomials
• R.3 Review of Factoring
• R.4 Review of Rational Expressions
• R.5 Review of Negative and Rational Exponents
• Test

### Appendix: Formulas from Geometry

#### Index

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