# Perpendicular Lines in the Coordinate Plane

## Lines with opposite sign, reciprocal slopes that intersect at right angles.

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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.

## Perpendicular Lines in the Coordinate Plane

This concept teaches students about perpendicular lines in the coordinate plane, and how to use slopes to determine whether or not two lines are perpendicular.
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## SLT 18 Determine the equation of a line that is parallel or perpendicular to a given line.

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• PLIX

## Slopes of Perpendicular Lines

Perpendicular Lines in the Coordinate Plane Interactive
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## Perpendicular Lines in the Coordinate Plane Principles

This video gives more detail about the mathematical principles presented in Perpendicular Lines in the Coordinate Plane.
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## Perpendicular Lines in the Coordinate Plane Examples

This video shows how to work step-by-step through one or more of the examples in Perpendicular Lines in the Coordinate Plane.
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• Critical Thinking

## Perpendicular Lines in the Coordinate Plane Discussion Questions

A list of student-submitted discussion questions for Perpendicular Lines in the Coordinate Plane.
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• Real World Application

## Perpendicular Lines In The Coordiante Plane

How do you show that two lines in the real world are perpendicular using a coordinate plane?
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• Study Guide