<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Skip Navigation

2.9: Square Roots and Irrational Numbers

Difficulty Level: At Grade Created by: CK-12
Atoms Practice
This indicates how strong in your memory this concept is
Practice Now
This indicates how strong in your memory this concept is
Turn In

Notes/Highlights Having trouble? Report an issue.

Color Highlighted Text Notes
Show More


approximate solution

An approximate solution to a problem is a solution that has been rounded to a limited number of digits.

Irrational Number

An irrational number is a number that can not be expressed exactly as the quotient of two integers.

Perfect Square

A perfect square is a number whose square root is an integer.

principal square root

The principal square root is the positive square root of a number, to distinguish it from the negative value. 3 is the principal square root of 9; -3 is also a square root of 9, but it is not principal square root.

rational number

A rational number is a number that can be expressed as the quotient of two integers, with the denominator not equal to zero.

Square Root

The square root of a term is a value that must be multiplied by itself to equal the specified term. The square root of 9 is 3, since 3 * 3 = 9.

Image Attributions

Show Hide Details
Difficulty Level:
At Grade
Date Created:
Aug 13, 2012
Last Modified:
Jul 01, 2016
Save or share your relevant files like activites, homework and worksheet.
To add resources, you must be the owner of the Modality. Click Customize to make your own copy.
Please wait...
Please wait...
Image Detail
Sizes: Medium | Original