 # Algebra 1 - 4th Edition

## Chapter 10: Rational Expressions and Equations

Some links are repeated for use with more than one lesson.

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### 10.1 Graphing Rational Expressions

http://www.sparknotes.com/math/algebra2/rationalexpressions/
This site contains links to pages about rational expression terms and problems, as well as adding, subtracting, multiplying, and dividing rational expressions.

http://www.analyzemath.com/Rational_expressions/Rational_express.html
This page defines rational expressions and the domain and has examples about each.

http://www.mathsisfun.com/algebra/rational-expression.html
This site presents and provides practice for graphing and analyzing rational expressions.

http://www.algebralab.org/lessons/lesson.aspx?file=algebra_rational_graphing.xml
This site presents guidelines and practice problems for graphing rational expressions.

### 10.2 Simplifying Rational Expressions

http://www.purplemath.com/modules/rtnldefs2.htm
This series of pages explains how to simplify rational expressions.

http://www.algebralab.org/lessons/lesson.aspx?file=Algebra_rational_simplifying.xml
This site has notes and examples on how to simplify rational expressions.

### 10.3 Multiplying and Dividing Rational Expressions

http://www.purplemath.com/modules/rtnlmult.htm
This page details how to multiply rational expressions and uses examples.

http://www.purplemath.com/modules/rtnlmult2.htm
This page details how to divide rational expressions and uses examples.

### 10.4 Adding and Subtracting Rational Expressions

This site demonstrates how to add and subtract rational expressions through examples.

This page has notes on how to add and subtract rational expressions and has step-by-step solved examples.

### 10.5 Inverse Variation

http://www.explorelearning.com/index.cfm?method=cResource.dspDetail&ResourceID=129
This page contains a gizmo that has a graph displaying direct and inverse variation.

http://www.sparknotes.com/math/algebra1/variation/section2.rhtml
This page discusses inverse functions and their graphs.

http://www.regentsprep.org/Regents/math/algtrig/ATE7/Inverse%20Variation.htm
This page discusses inverse variation problems and how to solve them.

### 10.6 Solving Rational Equations

http://www.algebralab.org/lessons/lesson.aspx?file=Algebra_rational_solving.xml
This page details how to solve rational equations.

http://www.regentsprep.org/Regents/math/algtrig/ATE11/RationalEquationsLes.htm
This site explains different methods of how to solve rational expressions.