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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.

## Inverse Functions

This lesson covers how to find the inverse of a function.
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## Functions and Inverses

Introduction to inverses of functions.
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## Inverses of Functions

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• PLIX

## Inverse Functions

Functions and Inverses Interactive
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