Author(s): Franklin Demana, Bert K. Waits, Gregory D. Foley, Daniel KennedyDifference between 8th and 7th editions Side by side comparison of table of contents helps to figure out the most significant changes. |

**Key differences between 8th and 7th editions**

- Period between current and previous publications: 4 years (2010 vs 2006).
- The content between the 8th and 7th editions hasn't changed significantly.
- Main content changes in the 8th edition of Demana/Waits/Foley/Kennedy's
*Precalculus: Graphical, Numerical, Algebraic*: **Chapter 1:**- The chapter opener on the consumer price index for housing has been updated with a real-world caution against extrapolation, exemplified by the mortgage meltdown of 2008.
- Section "Grapher Failure and Hidden Behavior" reflects the changing capabilities of the technology.
**Chapter 2:**- The introduction of linear correlation provides a caution against unwarranted conclusions.
- Clarification of approximate answers.
**Chapter 3:**- Section 3.6 "Mathematics of Finance" includes an introduction to the Finance menu on the graphing calculator.
**Chapter 7:**- Section 7.1 "Solving Systems of Two Equations" has been realigned to be focused more on the algebraic means of solution in preparation for the matrix methods to follow.
**Chapter 8:**- Incorporates the new classification of planets in the solar system.
**Chapter 9:**includes new section "9.9. Statistical Literacy" with discussions on:- The Many Misuses of Statistics
- Correlation Revisited
- The Importance of Randomness
- Surveys and Observational Studies
- Experimental Design
- Using Randomness
- Probability Simulations

Precalculus: Graphical, Numerical, Algebraic

Published by: Pearson, August 01, 2010

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$225.57 |
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$251.06 |
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Published by: Addison-Wesley, January 01, 2010

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$131.83 |
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Books a la Carte Edition

**Loose Leaf**

Published by: Pearson, August 08, 2010

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Precalculus: Graphical, Numerical, Algebraic

Published by: Addison-Wesley, February 21, 2006

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Published by: Addison Wesley, February 26, 2006

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High School NASTA Texas Edition

**Hardcover**

Published by: Addison-Wesley, Feb 21, 2006

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$20.80 |
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Student Solutions Manual

**Paperback**, 232 pages

Published by: Pearson, June 23, 2006

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$31.93 |
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Media Update, with CD-ROM

**Paperback**, 1056 pages

Published by: Addison-Wesley, May 6, 2009

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$72.11 |
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Precalculus: Graphical, Numerical, Algebraic

Published by: Addison-Wesley, January 01, 2004

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$53.35 |
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$56.60 |
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Published by: Pearson Addison Wesley, March 2003

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$71.56 |
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**Saving advice**

- Used 8th edition can save you
**$191.02**over the new one. -
Used previous 7th edition costs
**$22.03**less than the used 8th.