# Elementary and Intermediate Algebra

## Jay Lehmann

Unique in its approach, the Lehmann Algebra Series uses curve fitting to model compelling, authentic situations, while answering the perennial question "But what is this good for?" Lehmann begins with interesting data sets, and then uses the data to find models and derive equations that fit the scenario. This interactive approach to the data helps readers connect concepts and motivates them to learn. The curve-fitting approach encourages readers to understand functions graphically, numerically, and symbolically. Because of the multi-faceted understanding that they gain, readers are able to verbally describe the concepts related to functions.
• Limba : Engleza
• Cuprins : 1. Introduction to Modeling

1.1 Variables and Constants

1.2 Scattergrams

1.3 Exact Linear Relationships

1.4 Approximate Linear Relationships

Taking It to the Lab

Chapter Summary

Key Points of Chapter 1

Chapter 1 Review Exercises

Chapter 1 Test

2. Operations and Expressions

2.1 Expressions

2.2 Operations with Fractions

2.4 Change in a Quantity and Subtracting Real Numbers

2.5 Ratios, Percents, and Multiplying and Dividing Real Numbers

2.6 Exponents and Order of Operations

Taking It to the Lab

Chapter Summary

Key Points of Chapter 2

Chapter 2 Review Exercises

Chapter 2 Test

Cumulative Review of Chapters 1 and 2

3. Using the Slope to Graph Linear Equations

3.1 Graphing Equations of the Form y = mx + b

3.2 Graphing Linear Models; Unit Analysis

3.3 Slope of a Line

3.4 Using the Slope to Graph Linear Equations

• Data Publicarii : 2011
• Editie : 1
• Format : Hardback
• Numar pagini : 1040
• ISBN : 9780321621078
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