Math Definitions - Letter R
Chapters
Root
Definition of Root
A Root is a value for which a function is equal to zero.
You can see roots on the graphs of functions. They are the places where the function crosses the \(x\)-axis.
In the picture, you can see that the function \(y = x^2 - 1\) has roots (or zeroes) at \(x = 1\) and \(x = -1\).
We sometimes also use the word "root" as a shortened form of "square root". For example, if someone says "root 3", they mean \(\sqrt{3}\).
Description
The aim of this dictionary is to provide definitions to common mathematical terms. Students learn a new math skill every week at school, sometimes just before they start a new skill, if they want to look at what a specific term means, this is where this dictionary will become handy and a go-to guide for a student.
Audience
Year 1 to Year 12 students
Learning Objectives
Learn common math terms starting with letter R
Author: Subject Coach
Added on: 5th Feb 2018
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