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In this lesson we will look at the

This precalculus video tutorial provides a basic introduction into the

This lesson teaches functions though

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

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This precalculus video tutorial explains how to determine if a graph has an inverse function using the

In addition, it explains how to use the

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

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Be Clear about the two Tests:

7th