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How to determine if an expression/graph represents a "FUNCTION". Use the

This precalculus video tutorial provides a basic introduction into the

This math video focuses on functions. It explains how to tell if a relation is a function given a set of ordered pairs or a data table.

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In this lesson we will look at the

Is it a function or not? Learn the ultimate visual test in this math tutorial! Mario's Math Tutoring explains the

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Learn about every thing you need to know to understand the domain and range of functions. We will look at functions represented ...

An introduction to functions! This lesson teaches functions though

Learn how to determine whether relations such as equations, graphs, ordered pairs, mapping and tables represent a function.

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Watch this video to see how to determine if a graph is representing a function. In this video, we will look at inputs and outputs and ...

The

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This video explains how to apply the

The

This video gives a brief description of how the

How to use the

A graph in Cartesian coordinates may represent a function or may only represent a binary relation. The "