Verifying Inverse Functions | Precalculus

This precalculus video tutorial explains how to verify inverse functions. It discusses how to determine if two functions are inverses of each other by checking the composite functions of f(x) and g(x) to see whether or not it's equal to x. This video contains plenty of examples and practice problems.

Functions - Free Formula Sheet:

Final Exam and Test Prep Videos:

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Introduction to Functions:

Evaluating Functions:

Function Operations:

Increasing and Decreasing Functions:

Relative Maximum & Minimum Values:

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Relations and Functions:

Domain and Range From a Graph:

How To Find The Domain of a Function:

Average Rate of Change of a Function:

The Difference Quotient of a Function:

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Evaluating Piecewise Functions:

Graphing Piecewise Functions:

Composite Functions:

How To Evaluate Composite Functions:

Composite Functions - Data Table:

Comp. of 3 Functions - Data Table:

Decomposing Functions:

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Introduction to Inverse Functions:

How To Find The Inverse of a Function:

Verifying Inverse Functions:

Horizontal Line Test - 1 to 1 Functions:

Vertical Line Test:

Graphing Inverse Functions:

Composite and Inverse Functions:

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Even and Odd Functions:

Transformations of Functions:

Linear Functions:

Functions and Graphs - Problems:

Functions - Test Review:

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[The_Inventor]

Wait... I have a question... Is it necessary that after finding f(g(x)) and it is equal to X.... Do we still have to find g(f(x))