# Checking for Solutions to Systems of Linear Inequalities

## Substitute a given value and simplify

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
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## Solving systems of inequalities - Overview

by CK-12 //basic
Overview
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## Graphing Systems of Two Linear Inequalities - Overview

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Overview
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## Writing and Solving Problems Involving Systems of Linear Inequalities - Overview

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Overview
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## Solving systems of inequalities - Example 1

by CK-12 //basic
Graph the inequality
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## Solving systems of inequalities - Example 2

by CK-12 //basic
Tell whether the point is a solution to the system of inequalities
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## Solving systems of inequalities - Example 3

by CK-12 //basic
Solve the system of inequalities
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## Solving systems of inequalities - Example 4

by CK-12 //basic
Word Problems - Find the consumer and producer surplus
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## Graphing Systems of Two Linear Inequalities - Example 1

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Graphing the Solution Set for a System of Two Linear Inequalities
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## Graphing Systems of Two Linear Inequalities - Example 2

by CK-12 //basic
Graphing No Solution for a System of Two Linear Inequalities
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## Writing and Solving Problems Involving Systems of Linear Inequalities - Example 1

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Writing a System of Linear Inequalities Given a Word Problem
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## Writing and Solving Problems Involving Systems of Linear Inequalities - Example 2

by CK-12 //basic
Writing and Solving a System of Linear Inequalities Given a Word Problem
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