Functions

This tutorial will explore functions.

Table of Contents

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.

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

Graphs should only touch a vertical line one time.

Ordered pairs will not have any repeating x’s.

Here is a video tutorial comparing fractions.

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