Docsity
Docsity

Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity


Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan


Guidelines and tips
Guidelines and tips

Inequality Symbols and Vocabulary: A Guide, Lecture notes of Algebra

A comprehensive guide to understanding the symbols and vocabulary related to inequalities in mathematics. It covers the basic rules for isolating variables, reversing inequality signs, and interpreting symbols such as less than (<) and greater than (>). Additionally, it explains compound inequalities and the concepts of union and intersection. Phrases commonly used to express inequalities are also included.

Typology: Lecture notes

2021/2022

Uploaded on 09/12/2022

ekachakra
ekachakra 🇺🇸

4.6

(33)

269 documents

1 / 2

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
CTunstall/Inequality Vocabulary.doc/8/10/12
Inequalities: Symbols and Vocabulary
Algebra rules / General Rules:
Isolate a positive x on the left side using algebra
Reverse the inequality sign when mult/divide by a negative
Less than: The symbol that: Looks like an L () for ess than
< ○ ) Points to the Left
] Caps the arrow pointing towards smaller numbers
on the number line
Points towards the smaller of two numbers (4 < 7)
> Greater than: The symbol that: Looks like the top of an R ( >)for GReater than
> ( Points to the Right
[ Caps the arrow pointing towards larger numbers on
the number line
Open end is by the larger number (7 > 4)
Compound inequalities: usually in the form -4 < x < 4
but can also be x > -4 and x < 4
pf2

Partial preview of the text

Download Inequality Symbols and Vocabulary: A Guide and more Lecture notes Algebra in PDF only on Docsity!

CTunstall/Inequality Vocabulary.doc/8/10/

Inequalities: Symbols and Vocabulary

Algebra rules / General Rules:  Isolate a positive x on the left side using algebra  Reverse the inequality sign when mult/divide by a negative

 Less than : The symbol that:  Looks like an L () for ess than

< ○ )  Points to the L eft

 ● ]  Caps the arrow pointing towards smaller numbers

on the number line  Points towards the smaller of two numbers (4 < 7)

> Greater than : The symbol that: Looks like the top of an R (

)for G R eater than

○ (  Points to the R ight  ● [  Caps the arrow pointing towards larger numbers on the number line  Open end is by the larger number (7 > 4)

Compound inequalities: usually in the form -4 < x < 4 but can also be x > -4 and x < 4

CTunstall/Inequality Vocabulary.doc/8/10/

Union / Intersection Guidelines

 Union The symbol that:  Looks like a U for nion (not intersection)

 Resembles a smile   Smiles because it you get a greater amount  Corresponds to the greater than (>) inequality “GreatOR”

Intersection The symbol that:  Looks like an A for nd (not or)  Resembles a frown   Frowns because it you get less  Corresponds to the less than (<) inequality “Less thAND”

Inequality Vocabulary

Phrases that can mean:

Compound inequality phrases: between above phrases joined by “and” within above phrases joined by “or”

< (less than) = (equal) > (greater than) is less than is / are / will be /only more than is under is the same as above is below that is equal to over shorter / smaller than exactly greater / larger than fewer than half ( = .5* or ½ *) exceeds / increased is lower than longer than beneath is higher than a better deal

 (less than or equal to)  (not equal to)^  (greater than or equal to) at most is not equal to at least maximum is not the same as minimum bottom is different / differs from top is no more than is no less than