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Mathematics Archives

Math Archives: Visual Calculus: Functions

For Students 9th - 10th Standards
Use this site to find the defintion of a function. The site offers a discussion on the vertical line test, symbolic, numerical and verbal discussions on the definition of a function.
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Windstream

Ojk's Precalculus Study Page: Functions

For Students 9th - 10th Standards
An introduction to the basic terminology of functions, including how to use the vertical line test on the graph of a relation as a means of testing whether or not it is a function.
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Curated OER

Definition of the Term Function

For Students 9th - 10th Standards
A thorough introduction to function terminology, including information about domain and range and when an equation represents a function.