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# Comparing Equations of Parallel and Perpendicular Lines

## Use slope to identify parallel and perpendicular lines

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.
• Video

## Determining Parallel v. Perpendicular - Overview

by CK-12 //basic
Overview
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• Video

## Solving Word Problems Involving Parallel and Perpendicular Lines - Overview

by CK-12 //basic
Overview
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• Video

## Determining Parallel v. Perpendicular - Example 1

by CK-12 //basic
Determining Parallel v. Perpendicular Given Graphs of Two Lines
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• Video

## Determining Parallel v. Perpendicular - Example 2

by CK-12 //basic
Determining Parallel v. Perpendicular Given Two Linear Equations
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• Video

## Solving Word Problems Involving Parallel and Perpendicular Lines - Example 1

by CK-12 //basic
Writing Equations of Parallel or Perpendicular Lines Given a Word Problem
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• Video

## Solving Word Problems Involving Parallel and Perpendicular Lines - Example 2

by CK-12 //basic
Writing and Solving Equations of Parallel or Perpendicular Lines Given a Word Problem
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