This tutorial will explore functions.


A function is a mathematical machine that relates an output (y) to an input (x). Functions are usually written with f(x) as opposed to “y”.

The x values are referred to as the Domain.

The y values are referred to as the Range.

Functions in Tables

Functions in tables have no repeating x’s.


Functions in Mapping

Each x value has one arrow each pointing to the y’s.


Functions in Graphs

Graphs should only touch a vertical line one time.


Functions in Ordered Pairs

Ordered pairs will not have any repeating x’s.

Functions Video Tutorial


Here is a video tutorial comparing fractions.


Interactive Class on this Topic

Take an interactive middle school math class on this material, click here


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