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- Thread starter #neutrino
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fresh_42

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Mark44

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Clearly the graph of ##x - y \ge 2## includes the line x - y = 2. To determine which half-plane makes up the rest of the graph, pick a point that isn't on the line, and see if it makes the inequality a true statement. For example, does the point (0, 0) satisfy the inequality? Does the point (2, -2) satisfy the inequality?

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