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.
The graph of an
inequality in two variables is a half plane bounded by a straight
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.
Graphing Inequalities with Two Variables
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.