Graph Linear Inequalities 2 variables Part 2
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Lesson Summary:
In this lesson, Julie Harland teaches how to graph linear inequalities with two variables by demonstrating the process with two examples. The first is y≤2x-3, where the solid line y=2x-3 is part of the solution, and the second is x+y>3, where the dotted line x+y=3 is not part of the solution. She emphasizes the importance of choosing the right side of the line to shade and suggests checking one ordered pair to ensure accuracy.
Lesson Description:
Part 2 of graphing linear inequalities with 2 variables.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- How do you graph linear inequalities in a coordinate plane?
- How do you graph y <= 2x - 3?
- How do you graph x + y > 3?
- How do you know whether a line should be dashed or solid in linear inequalities?
- How do you know which side of the line to shade in a linear inequality?
- How do you know which point to pick to determine which side of the line to shade?
- How can you check to make sure the side of the line you shaded was correct?
- Is there an easy way to know which side of the line to shade without plugging in a point?
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Staff Review
This lesson picks up where the last lesson left off, showing a couple of more examples of graphing linear inequalities in a coordinate plane. First, the lines are graphed, determining whether the line should be dashed or solid, and then one side of the line is shaded. All steps are explained for each problem.
