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# Functions and Inverses

## Undo the original function; reflections across y = x.

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.
• Read

## Inverse Functions

by CK-12 //at grade
This lesson covers how to find the inverse of a function.
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• Read

## Functions and Inverses

by CK-12 //at grade
Introduction to inverses of functions.
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• Read

## Inverses of Functions

by CK-12 //at grade
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• PLIX

## Inverse Functions

by CK-12 //at grade
Functions and Inverses Interactive
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• Video

## Inverse Functions

by CK-12 //at grade
Defines inverse functions and then determines if a function has one.
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