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Graphing Inequalities with Two Variables
VI. Inequalities: Lecture 7 | 30:50 min
In this lecture you will learn how to Graph Inequalities with Two Variables beginning with the concepts of half plane and boundary line. Then, you will learn the techniques for graphing with an emphasis on solid or dashed lines and choosing a test point. The lesson ends with four additional video examples to make sure you understand the new concepts.
QuickNotes™ 
Graphing Inequalities with Two Variables
The graph of an inequality in two variables is a half plane bounded by a straight line.
If the inequality is strict (< or >), then draw the boundary as a dashed line, otherwise draw it as a solid line.
Use a test point, normally the origin, to determine which half plane is the solution of the inequality. Shade that region.
Discussion 
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Carleen Eaton
Grant Fraser

