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Big Ideas Math Integrated I, 2016 View details

6. Graphing Linear Inequalities in Two Variables

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Exercise 15 Page 253

Does the point lie within the shaded area?

No

Practice makes perfect

To check whether the ordered pair (3,3) is a solution of the inequality shown on the graph, let's plot this point and check whether it lies in the shaded area.

At first glance, one might think that this point is within the solution set. However, because it lies on the dashed line, and the dashed line is not included in the inequality, it is not a solution.