Prentice Hall Algebra 1

11 Chapter Review

Connecting BIG ideas and Answering the Essential Questions

1 Equivalence Rational expressions can be represented many ways. When a rational expression is simplified, the numerator and denominator have no common factors except 1. Simplifying Rational Expressions (Lesson 11-1)
We simplify a rational expression. (7y + 21) over (y + 3) = [7(y + 3)] over (y + 3). Cancel out the expression (y + 3) in both the numerator and denominator. (7y + 21) over (y + 3) = 7.
Multiplying, Dividing, Adding, and Subtracting Rational Expressions (Lessons 11-2, 11-3, and 11-4)
table with 2 rows and 2 columns , row1 column 1 , fraction 7 , over 3 x end fraction , minus , fraction 5 , over 3 x end fraction , column 2 equals . fraction 7 minus 5 , over 3 x end fraction , row2 column 1 , , column 2 equals , fraction 2 , over 3 x end fraction , end table
2 Functions Rational functions have equations of the form f , open x close , equals . fraction polynomial , over polynomial end fraction . .  The graph of a rational function may have vertical and horizontal asymptotes. Graphing Rational Functions (Lesson 11-7)
This graph consists of 2 curves.
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Inverse Variation (Lesson 11-6)
2 graphs consisting of 2 curves each are shown.
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3 Solving Equations and Inequalities To isolate the variable in a rational equation, multiply by the LCD and then solve the resulting equation. Check for extraneous solutions. Solving Rational Equations (Lesson 11-5)
table with 4 rows and 2 columns , row1 column 1 , 1 half , plus , 3 over t , column 2 equals , 5 eighths , row2 column 1 , 8 t . open . 1 half , plus , 3 over t . close , column 2 equals 8 t . open , 5 eighths , close , row3 column 1 , 4 t plus 24 , column 2 equals 5 t , row4 column 1 , 24 , column 2 equals t , end table
 

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Table of Contents

Prentice Hall Algebra 1 Chapter 1 Foundations for Algebra Chapter 2 Solving Equations Chapter 3 Solving Inequalities Chapter 4 An Introduction to Functions Chapter 5 Linear Functions Chapter 6 Systems of Equations and Inequalities Chapter 7 Exponents and Exponential Functions Chapter 8 Polynomials and Factoring Chapter 9 Quadratic Functions and Equations Chapter 10 Radical Expressions and Equations Chapter 11 Rational Expressions and Functions Chapter 12 Data Analysis and Probability Skills Handbook Reference Visual Glossary Selected Answers Index Acknowledgments