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# Equations of Perpendicular Lines

## Lines meeting at right angles have slopes that are negative reciprocals

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.

## Finding the Equation of Perpendicular Lines

This lesson covers determining if two lines are parallel, perpendicular, or neither and finding the equation of perpendicular lines to a given line.

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• PLIX

## Equations of Perpendicular Lines

Equations of Perpendicular Lines Interactive

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## Equations of Perpendicular Lines Quiz

Quiz for Equations with Perpendicular Lines.

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• Practice
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## Equations of Perpendicular Lines Practice

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• Critical Thinking

## Equations of Perpendicular Lines Discussion Questions

A list of student-submitted discussion questions for Equations of Perpendicular Lines.

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## Equations of Perpendicular Lines Pre and Post Read

To organize ideas, increase comprehension, synthesize learning, demonstrate understanding of key concepts, and reinforce vocabulary using a Quickwrite.

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## Finding the Equation of Perpendicular Lines Double Entry Diary

To have students generate connections between specific points in the concept’s reading and their own personal experiences using a Double Entry Diary.

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• Real World Application

## Parallel & Perpendicular Lines

Students will apply their understanding of finding the equations of parallel and perpendicular lines to pictures they see in everyday life.

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• Study Guide

## Determining the Equation of a Line Study Guide

This study guide looks at finding equations for lines (in slope-intercept form, point-slope form, and standard form). It also looks at equations for parallel and perpendicular lines.

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