Videos, worksheets, games and acivities 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.

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.

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