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# Algebra : Form and Function (Preliminary Edition) - 08 edition

## ISBN10: 0470226668

Edition: 08
Copyright: 2008
Publisher: John Wiley & Sons, Inc.
Published:
International: No

## ISBN10: 0470226668

Edition: 08

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### Summary

This text covers all of the standard topics for college algebra. The first four chapters give an introduction to algebra for those students who need it. There is also a cumulative review exercise at the end of Chapter 4.The exercises are a normal lesson apart, and the problems in each exercise are in groups of four similar ones. This makes it a simple matter for even the inexperienced instructor to make a good assignment regularly. Most classes only need to be assigned every fourth problem, but other problems are available for practice. There are about 5000 problems in some 75 regular and 12 review exercises. About half of the problems are new, and there are many drill problems which are closely keyed to the examples.Answers are given in the text for three-fourths of the regular and all of the review problems.

### Table of Contents

0 Review of Basic Skills 1 0.1 EXPRESSIONS AND EQUATIONS 2 0.2 THE DISTRIBUTIVE LAW 7 0.3 SOLVING LINEAR EQUATIONS 14 0.4 POSITIVE INTEGER POWERS AND THE EXPONENT RULES 18 0.5 ZERO, NEGATIVE, AND FRACTIONAL POWERS 23 0.6 FACTORING 29 1 The Basic Ideas of Algebra 37 1.1 EXPRESSIONS 38 1.2 TRANSFORMING EXPRESSIONS 42 1.3 EQUATIONS 48 1.4 SOLVING EQUATIONS 54 REVIEW PROBLEMS 61 2 Functions, Expressions, and Equations 65 2.1 WHAT IS A FUNCTION? 66 2.2 FUNCTIONS AND EXPRESSIONS 72 2.3 FUNCTIONS AND EQUATIONS 76 2.4 FUNCTIONS AND CHANGE 83 2.5 FUNCTIONS AND MODELING 88 REVIEW PROBLEMS 95 3 Linear Functions and Equations 99 3.1 LINEAR FUNCTIONS 100 3.2 EXPRESSIONS FOR LINEAR FUNCTIONS 107 3.3 LINEAR EQUATIONS 115 Contents xiii 3.4 MORE ON EQUATIONS OF LINES 121 3.5 MODELING WITH LINEAR FUNCTIONS 131 3.6 SYSTEMS OF LINEAR EQUATIONS 137 REVIEW PROBLEMS 147 4 Powers 155 4.1 POWER FUNCTIONS 156 4.2 EXPRESSIONS FOR POWER FUNCTIONS 165 4.3 EQUATIONS INVOLVING POWERS 172 4.4 MODELING WITH POWER FUNCTIONS 179 REVIEW PROBLEMS 186 5 More on Functions 189 5.1 DOMAIN AND RANGE 190 5.2 COMPOSING AND DECOMPOSING FUNCTIONS 197 5.3 SHIFTING AND SCALING 202 5.4 INVERSE FUNCTIONS 212 REVIEW PROBLEMS 217 6 Quadratic Functions, Expressions, and Equations 221 6.1 QUADRATIC FUNCTIONS 222 6.2 WORKING WITH QUADRATIC FUNCTIONS 228 6.3 QUADRATIC EQUATIONS 236 6.4 SOLVING QUADRATIC EQUATIONS BY FACTORING 244 REVIEW PROBLEMS 252 xiv Contents 7 Exponential Functions 255 7.1 WHAT IS AN EXPONENTIAL FUNCTION? 256 7.2 INTERPRETING THE BASE 262 7.3 INTERPRETING THE EXPONENT 267 7.4 EXPONENTIAL EQUATIONS 274 7.5 MODELING WITH EXPONENTIAL FUNCTIONS 280 7.6 EXPONENTIAL FUNCTIONS AND BASE e 286 REVIEW PROBLEMS 291 8 Logarithms 295 8.1 INTRODUCTION TO LOGARITHMS 296 8.2 SOLVING EQUATIONS USING LOGARITHMS 304 8.3 APPLICATIONS OF LOGARITHMS TO MODELING 310 8.4 NATURAL LOGS AND LOGS TO OTHER BASES 315 REVIEW PROBLEMS 324 9 Polynomials 329 9.1 POLYNOMIALS 330 9.2 THE FORM OF A POLYNOMIAL 333 9.3 POLYNOMIAL EQUATIONS 341 9.4 LONG-RUN BEHAVIOR OF POLYNOMIAL FUNCTIONS 347 REVIEW PROBLEMS 354 10 Rational Functions 357 10.1 RATIONAL FUNCTIONS 358 10.2 LONG-RUN BEHAVIOR OF RATIONAL FUNCTIONS 364 REVIEW PROBLEMS 378 ANSWERS TO ODD-NUMBERED PROBLEMS 381 INDEX 397