Graphing Linear Inequalities with Desmos

Dr. Marissa May explains how to use the Desmos graphing calculator, specifically the Texas version, to graph the inequality y ≤ 2x + 3. She highlights the importance of using this version for Texas students due to standardized tests. The video covers how to input the inequality, handle errors, decide between solid and dashed lines, and correctly shade the graph. The tutorial emphasizes practical steps and tips for effectively using Desmos for graphing inequalities.

Who is the presenter of the video?

• Ms. Jennifer

• Dr. Marissa May

• Professor Smith

• Dr. John Doe

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CCSS.RI.11-12.8

CCSS.RI.9-10.7

CCSS.RL.11-12.8

CCSS.RL.8.7

CCSS.RL.9-10.7

What specific version of the Desmos calculator does the presenter recommend for Texas students?

• Desmos National

• Desmos Basic

• Desmos Advanced

• Desmos Texas

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CCSS.HSF-IF.C.7E

What is the purpose of using the Desmos Texas version specifically for students?

• It's faster

• It's cheaper

• It's required for their tests

• It has more features

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CCSS.HSA.REI.D.12

What error occurs when trying to graph the inequality directly in the Texas Desmos?

• None, it graphs correctly

• Syntax error

• Graphing error

• Input error

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CCSS.HSA.REI.D.12

What does the presenter suggest to do when encountering a graphing error with an inequality?

• Ignore the error

• Restart Desmos

• Use a different calculator

• Replace the inequality with an equal sign

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CCSS.HSA.REI.D.12

How does the presenter handle the limitation of Desmos not graphing inequalities directly?

• By contacting Desmos support

• By recommending another tool

• By downloading a patch

• By using a workaround of graphing an equation first

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CCSS.HSA.REI.D.12

Why is a solid line used in the graph for the equation 'y <= 2x + 3'?

• Because it represents an inequality

• Because it includes the equal to condition

• Because it is easier to see

• Because it is a standard in graphing

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CCSS.HSA.REI.D.12

What does shading below the line represent in the context of the inequality 'y <= 2x + 3'?

• Values equal to y

• Values greater than y

• None of the above

• Values less than y

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CCSS.HSA.REI.D.12

What determines whether a line is solid or dashed when graphing inequalities?

• The complexity of the equation

• Whether the inequality includes an equal sign

• The preference of the user

• The type of calculator used

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CCSS.HSA.REI.D.12

Where should the shading be placed for the inequality 'y <= 2x + 3'?

• Above the line

• Below the line

• On the line

• No shading needed

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CCSS.HSA.REI.D.12