Objectives To graph linear inequalities in two variables
To use linear inequalities when modeling real-world situations
A linear inequality in two variables, such as
Essential Understanding A linear inequality in two variables has an infinite number of solutions. These solutions can be represented in the coordinate plane as the set of all points on one side of a boundary line.
Is the ordered pair a solution of
Have you tested solutions before?
Yes. You have tested whether ordered pairs are solutions of equations. Now you will test ordered pairs to see whether they satisfy an inequality.
A (1, 2) |
B (
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← Write the inequality. → |
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← Substitute. → |
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← Simplify. → |
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(1, 2) is a solution. | (
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Got It?