Prealgebra y introductory Algebra /
- 1
- EUA Siglo XXl editores 2008
- 1223 21cm de ancho X 26cm de largo
- Serie .
Contents
Tools to Help Students Succeed
Additional Resources to Help You Succeed sii
Preface XV
Applications Index
EXV
The Whole Numbers 1
1
1.1 Tips for Success in Mathematics 2
12 Place Value and Names for Numbers 7
13 Adding and Subtracting Whole Numbers, and Perimeter 15
1.4 Rounding and Estimating 30
1.5 Multiplying Whole Numbers and Area 38
1.6 Dividing Whole Numbers 50
Integrated Review-Operations on Whole Numbers
64
1.7 Exponents and Order of Operations 66
1.8 Introduction to Variables, Algebraic Expressions, and Equations 75
Chapter 1 Group Activity: Investigating Endangered and Threatened Species 83
Vocabulary Check 84
Chapter 1 Highlights 85.
Chapter 1 Review 88
Chapter 1 Test 93
Integers and Introduction to Solving Equations 2
95
2.1 Introduction to Integers 96
2.2 Adding Integers 106
2.3 Subtracting Integers 114
2.4 Multiplying and Dividing Integers Integrated Review-Integers
122
2.5 Order of Operations 133
131
2.6 Solving Equations: The Addition and Multiplication
Properties 141
Magic Squares
149
Chapter 2 Group Activity:
Vocabulary Check 150
Chapter 2 Highlights
150
Chapter 2
Review
153
Chapter 2 Test 157
Cumulative Review
159 15
Roots and Radicals
1105
15.1 Introduction to Radicals
1106
15.2 Somplifying Radicals 1113
1121
15.3 Adding and Subtracting Radicals
1126
15.4 Multiplying and Dividing Radicals
Integrated Review-Simplifying Radicals
1134
15.5 Solving Equations Containing Radicals 11.36 15.6 Radical Equations and Problem Solving 1147
Chapter 15 Group Activity: Graphing and the Distance Formula 1149
Vocabulary Check 1150
Chapter 15 Highlights 1150
Chapter 15 Review 1153
Chapter 15 Test
1156
Cumulative Review 1158
16 Quadratic Equations
1160
16.1 Solving Quadratic Equations by the Square Root Property 1161 16.2 Solving Quadratic Equations by Completing the Square 1168
16.3 Solving Quadratic Equations by the Quadratic Formula 1173 Integrated Review-Summary on Quadratic Equations 1182
16.4 Graphing Quadratic Equations in Two Variables
1184
Chapter 16 Group Activity: Uses of Parabolas
Vocabulary Check
1194
1193
Chapter 16 Highlights
1194
Chapter 16 Review
1196
Chapter 16 Test
1200
Cumulative Review
1202
Appendix A
Tables 1205
Appendix B The Bigger Picture 1210
Appendix C Factoring Sums and Differences of Cubes 1216
Appendix D Systems of Linear Inequalities
1219
Appendix E Geometric Formulas
1223
Answers to Selected Exercises
A1
Index 11
SULTAR RABAJOS ÉMICOS
Preface
Prealgebra & Introductory Algebra was first written im response to the needs of those teaching combined courses. My goals were to help students make the transs tion from arithmetic to algebra and to provide a solid foundation in algebra To achieve these goals, I introduce algebraic concepts catly and repeat them often, as traditional arithmetic topics are discussed, thus laying the groundwork for algebra Specific care was taken to ensure that all core topics of an introductory algebra course are covered and that students have the most up to date relevant text prepa ration for future courses that require an understanding of algebraic fundamentals The many factors that contributed to the success of the previous edition have been retained. In preparing the Second Edition, I considered comments and sugges tions of colleagues, students, and many users of the prior edition throughout the country
What's New in the Second Edition?
Enhanced Exercise Sets
NEW! Three forms of mixed sections of exercises have been added to the Second Edition
Mixed Practice exercises combining objectives within a section
Mixed Practice exercises combining previous sections
Mixed Review exercises included at the end of the Chapter Review
These exercises require students to determine the problem type and strategy needed in order to solve it. In doing so, students need to think about key con-cepts to proceed with a correct method of solving-just as they would need to do on a test.
NEW! Vocabulary and Readiness Check exercises appear at the beginning of most exercise sets. These exercises quickly check a student's understanding of new vocabulary words so that forthcoming instructions in the problem sets will be clear. The readiness exercises center on a student's understanding of a con-cept that is necessary in order to continue with the exercise set. For example, such a readiness exercise might be for students to write out both 2 and
NEW! Concept Check exercises have been added to the section exercise sets.
These exercises are related to the Concept Check(s) found within the section. They help students measure their understanding of key concepts by focusing on common trouble areas. These exercises may ask students to identify a common error, and/or provide an explanation.
NEW! Concept Extensions (formerly Combining Concepts) have been revised.
These exercises extend the concepts and require students to combine several skills or concepts to solve the exercises in this section.
Increased Emphasis on Study Skills and Student Success
NEW! Study Skills Builders (formerly Study Skill Reminders) Found at the end of many exercise sets, Study Skills Builders allow instructors to assign exercises that will help students improve their study skills and take responsibility for their part of the learning process. Study Skills Builders reinforce the material found in Section 1.1. "Tips for Success in Mathematics," and serve as an excellent tool for self-assessment.
NEW! The Bigger Picture is a recurring feature that focuses on the key con-cepts of the course-operations on sets of numbers, simplifying expressions.