Algebra 2 Unit One Quiz

> or <

open circle ( )

≤ or ≥

closed circle [ ]

Real #'s

All numbers other than imaginary (like square root of -1)

Rational Numbers

Numbers that can be expressed as a fraction

Natural numbers

Numbers that you count with (1,2,3,4,5,6...) (not zero) (think kindergarten)

Whole Numbers

All natural numbers AND 0

Integers

whole numbers and their opposites (negatives)

Irrational Numbers

Non-repeating, non-terminating decimal

Communative Property

a+b=b+a (# order)

Assosiative Property

(a+b)+c=a+(b+c) (placing of parenthesis)

Identity Property of Multiplication

If you multiply a number by one, the product is the same as that number.

Identity Property of Addition

If you add zero to a number, the sum is the same as that number.

Inverse property

a+(-a)=0=(-a)+aora*(1/a)=1=(1/a)

Distributive Property

a(b + c) = ab + ac