CK-12 Foundation
Ck 12: Algebra: Inequalities on a Number Line
[Free Registration/Login may be required to access all resource tools.] Use a number line to graph inequalities
Free Math Help
Free Math Help: Solving Systems of Inequalities
Beginning with understanding the less than and greater than symbols, this lesson will take you step by step through solving systems of inequalities. There are very good problems to use as examples.
Purple Math
Purplemath: Solving Inequalities: An Overview
A discussion on how to solve linear and nonlinear inequalities is presented. Both the Test Method and the Factor Method of checking positive/negative intervals are included as part of the discussion.
Khan Academy
Khan Academy: Inequalities on a Number Line
In this exercise, students practice plotting inequalities on a number line. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Compound Inequalities
"Dr. Math" provides a visual (graphical) approach to solving compound inequalities as opposed to an approach dependent upon algebraic manipulation.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Solving Inequalities
This site goes through steps to graph an inequality posed by a student.
Lawrence Hall of Science
The Math Page: Skill in Algebra: Inequalities
Here is a site that clearly and thoroughly explains many topics related to inequalities, including solving and graphing simple and compound inequalities. There are example problems solved, problems for the student to attempt, and answers...
Cool Math
Coolmath: Compound Inequalities
This algebra lesson explains how to solve compound inequalities.
Cool Math
Coolmath: Absolute Value Inequalities<
This Algebra Cruncher generates an endless number of practice problems for absolute value inequalities with "less than" with solutions and hints!
Cool Math
Coolmath: Absolute Value Inequalities >
This Algebra Cruncher generates an endless number of practice problems for absolute value inequalities with "greater than" with solutions and hints!
Purple Math
Purplemath: Solving Linear Inequalities: Introduction and Formatting
This resource demonstrates how to solve linear inequalities step-by-step and shows four different solution formats/notations viz. inequality notation, set notation, interval notation, and the last "notation" which is more of an...
Khan Academy
Khan Academy: Inequality From Graph
Practice choosing inequalities that represent a graph.
Khan Academy
Khan Academy: Two Step Inequality Word Problems
Practice solving two-step inequality word problems.
Khan Academy
Khan Academy: Testing Solutions to Inequalities
Practice plugging in values to inequalities and checking to see if the inequalities hold true. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Plotting Inequalities
Create number line graphs of inequalities. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
CK-12 Foundation
Ck 12: Algebra: Applications With Inequalities
[Free Registration/Login may be required to access all resource tools.] In this lesson students write and solve multi-step inequalities, including compound inequalities, when given problem situations. Students watch a video tutorial,...
Cool Math
Coolmath: Solving Inequalities Set Builder Notation
This CoolMath resource will help students learn how to solve inequalities.
Cool Math
Coolmath: Solving Inequalities the Freaky Thing
This CoolMath resource will help students learn how to solve inequalities. Dividing by negative numbers is featured.
Cool Math
Coolmath: Solving Inequalities Solving Basic Guys
This CoolMath resource will help students learn how to solve inequalities and graph them on a number line.
Windstream
Ojk's Precalculus Study Page: Linear Inequalities and Absolute Value
This tutorial demonstrates how to solve linear equalities. It also defines absolute value and demonstrates how to solve problems involving absolute value.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Inequalities
"Dr. Math" responds to a student question about solving inequalities. Within the response, a list of the properties of inequalities is provided. Site by Math Forum
Other
University of Wisconsin: Graphing Inequalities
This site, which is provided for by the University of Wisconsin, gives a discussion in how to graph an inequality is presented. A link to practice problems is provided.