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Solving Inequalities in 2 Variables

Solving Inequalities in 2 Variables. Thursday, February 6, 2014. What are the rules?. How do you graph a line? You graph an inequality basically the same way… you need to isolate y. If it can’t be equal, it’s like a regular inequality when you graph… the open circle becomes a dotted line.

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Solving Inequalities in 2 Variables

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  1. Solving Inequalities in 2 Variables Thursday, February 6, 2014

  2. What are the rules? • How do you graph a line? • You graph an inequality basically the same way… you need to isolate y. • If it can’t be equal, it’s like a regular inequality when you graph… the open circle becomes a dotted line. • If it can be equal, then like the closed circle, your line is solid.

  3. Let’s try graphing and solving… • Graph and pick a point. Does the point satisfy the inequality? • Do a few more. Do you see a pattern? • Are the answers above or below the line? • When?

  4. Where do you shade? • If it’s greater, shade above. • If it’s less than, shade below.

  5. Practice, Practice. • Practice during class with your learning partner. • Practice at home by yourself. • Complete a total of 20 problems.

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