Unit 1 - Equations and Inequalities

<

<

Less than

Greater than

≥

Greater than or equal to

≤

Less than or equal to

( )

for open points, > or <

[ ]

for closed points, ≤ or ≥

Rational numbers

any number that CAN be written as a fraction

Irrational numbers

any number that CAN'T be written as a fraction

Expression

Does not include <, >, =, ≤ or ≥

Equation

ALWAYS has =

Inequality

includes <, >, ≤ or ≥

The Commutative Property

Addition OR multiplication, changes the order of the terms

The Associative Property

Addition OR multiplication, changes the groupings

The Inverse Property

Trying to get back to the identity

The Distributive Property

Gets rid of parenthesis through multiplication