Linear Inequalities

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A solid line.

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A dashed line.

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It represents the area above or on the line, including the line itself.

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A dashed line.

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Substitute the point's coordinates into the inequality and check if it holds true.

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What is the difference between a solid line and a dashed line in graphing inequalities?

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A solid line indicates that points on the line are included in the solution (\le or \ge), while a dashed line indicates they are not included (< or >).

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What is the first step in graphing a linear inequality?

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Convert the inequality to an equation to find the boundary line.

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Choose a test point (like (0,0)), substitute it into the inequality, and see if it makes the inequality true.