# Graphing Inequalities on a Number Line Powerpoint Lesson

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Presentation (Powerpoint) File

(666 KB)
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This presentation has detailed notes for students to copy down on how to graph an inequality on a number line. Students will then use those notes to complete the practice problems in the presentation. Half the problems show an inequality and students need to graph the inequality on a number line, the other half of the problems present a graph and students need to write the inequality that matches the graph. I have students use a number line in a clear pouch so they can write on it with dry erase marker.

Solve word problems leading to inequalities of the form π±πΉ + π² > π³ or π±πΉ + π² < π³, where π±, π², and π³ are specific rational numbers. Graph the solution set of the inequality and interpret it in the context of the problem. For example: As a salesperson, you are paid \$50 per week plus \$3 per sale. This week you want your pay to be at least \$100. Write an inequality for the number of sales you need to make, and describe the solutions.
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Teaching Duration
1 hour
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