In this lesson, Julie Harland teaches us how to graph linear inequalities with two variables. She demonstrates with two examples and explains when to use a dotted or solid line. She reminds us to pick an ordered pair on the line to ensure we shade the correct side. As always, visit yourmathgal.com to view more math lessons organized by topic.
Part 3 of graphing linear inequalities with 2 variables.
How do you graph linear inequalities with 2 variables in a coordinate plane?
How do you graph y < 1/2x?
How do you graph x >= -y?
How do you graph an inequality if y is on the right side?
How do you know which side to shade an inequality on?
How do you know whether a line should be dashed or solid in an inequality?
How do you know which point to use to determine where to shade an inequality?
Why do you flip the inequality sign when you divide by a negative number?
How do you know whether to shade above or below a line for an inequality in the coordinate plane?
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This lesson shows some more example problems of graphing linear inequalities and shading them. The steps for how to graph the line, whether the line should be dashed or solid, and which side of the line should be shaded are explained.