# 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.

## Equations of Perpendicular Lines

by Susan Sudberry //basic
Learn how to recognize and write equations of perpendicular lines.
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## Equations of Perpendicular Lines

by Scott Lamie //basic
Learn how to recognize and write equations of perpendicular lines.
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## Parallel or Perpendicular Lines

by Susan Sudberry //basic
Learn how to recognize and write equations of perpendicular lines.
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## Equations of Perpendicular Lines

by Barbara Zingg //basic
Learn how to recognize and write equations of perpendicular lines.
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• Flashcards

## Finding the Equation of Perpendicular Lines

by Kyle Bardman //basic
These flashcards will help you to better understand Algebra II with Trigonometry Concepts.
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