What Is a Function? | Precalculus
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What Is a Function? | Precalculus
This math video tutorial explains what a function is. It is a special relation where there is exactly one output for every input. This video explains how to evaluate a function and how to determine if a graph represents a function using the vertical line test. Functions - Free Formula Sheet: https://www.video-tutor.net/precalculus-formula ...
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