# Relations and Functions

Related Topics:
More Lessons for Algebra I

Math Worksheets

Videos, worksheets, solutions, and activities to help Algebra 1 students learn how to distinguish between relations and functions. The use of the vertical line test and mapping diagrams are also discussed.

How to determine whether a relation is a function.
This video explains the concepts behind mapping a relation and the vertical line test.
Given a relation, determine if it is a function

Relations and Functions
Students learn that if the x-coordinate is different in each ordered pair in a given relation, then the relation is a function.
This video explains how to use the vertical line test and the horizontal line test to determine if the graph of a relations is a one to one function.

This video explains how to use the vertical line test and the horizontal line test to determine if the graph of a relations is a one to one function.
Functions - The Vertical Line Test
Students learn to use the vertical line test to determine if a relation is a function.

This video will explain how to determine if a relations given as a table is a one to one function.
Functions - Mapping Diagrams
Students learn to use mapping diagrams to determine if a relation is a function.

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.