Horizontal Line Test and One to One Functions

This precalculus video tutorial explains how to determine if a graph has an inverse function using the horizontal line test. If it passes the test, the function is a one to one function.

Introduction to Functions:    • Functions - Vertical Line Test, Order...  

Evaluating Functions:
   • Evaluating Functions - Basic Introduc...  

Function Operations:
   • Function Operations  

Increasing and Decreasing Functions:
   • Increasing and Decreasing Functions -...  

Relative Maximum & Minimum Values:
   • Identifying The Relative Maximum and ...  

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Relations and Functions:
   • Relations and Functions | Algebra  

Domain and Range From a Graph:
   • Domain and Range of a Function From a...  

How To Find The Domain of a Function:
   • How To Find The Domain of a Function ...  

Average Rate of Change of a Function:
   • Average Rate of Change of a Function ...  

The Difference Quotient of a Function:
   • Difference Quotient  

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Evaluating Piecewise Functions:
   • Evaluating Piecewise Functions | PreC...  

Graphing Piecewise Functions:
   • Graphing Piecewise Functions - Precal...  

Composite Functions:
   • Composite Functions  

How To Evaluate Composite Functions:
   • How To Evaluate Composite Functions U...  

Composite Functions - Data Table:
   • How To Evaluate Composite Functions U...  

Comp. of 3 Functions - Data Table:
   • Composition of Three Functions With D...  

Decomposing Functions:
   • Decomposing Functions - Composition o...  

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Introduction to Inverse Functions:
   • Introduction to Inverse Functions  

How To Find The Inverse of a Function:
   • How To Find The Inverse of a Function  

Verifying Inverse Functions:
   • Verifying Inverse Functions | Precalc...  

Horizontal Line Test - 1 to 1 Functions:
   • Horizontal Line Test and One to One F...  

Vertical Line Test:
   • Vertical Line Test  

Graphing Inverse Functions:
   • Graphing Inverse Functions  

Composite and Inverse Functions:
   • Composite Functions and Inverse Funct...  

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Even and Odd Functions:
   • Even, Odd, or Neither Functions The E...  

Transformations of Functions:
   • Transformations of Functions | Precal...  

Linear Functions:
   • Linear Functions  

Functions and Graphs - Problems:
   • Functions and Graphs | Precalculus  

Functions - Test Review:
   • Functions  

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