Discovery Education
Discovery Education: Web Math: Plot/graph an Inequality
This site provides a step-by-step process to graph an inequality. Simply type in your expression, and the website will graph the expression as well as explain how and why it did what it did.
Curated OER
Science Kids: Science Images: Inequation Sign
This picture is an inequation sign, used in mathematics to state that two expressions or objects are not the same, or do not have the same value.
University of Regina (Canada)
University of Regina: Math Central: Graphing Inequalities of Conic Sections
A solution to a student submitted problem is given. The problem involves systems of conic sections with inequalities.
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.