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# Solving Inequalities in 2 Variables PowerPoint PPT Presentation

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.

Solving Inequalities in 2 Variables

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## 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.

• If it can be equal, then like the closed circle, your line is solid.

### 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?