algebra 2 Flashcards
1
Q
commutative
A
order does not matter 4+3=3+4
2
Q
associative
A
parentheses change (3+4)+7=3+(4+7)
3
Q
reflexive
A
no change 10=10
4
Q
distributive
A
7 (3x+2) = 21x+14
5
Q
symmetric
A
when the = changes places 3+4=7 7=3+4
6
Q
transitive
A
3 equations if 3+4=7 and 6+1=7 then 3+4=6+1
7
Q
identity
A
a+0=0 or ax1=1
8
Q
inverse
A
7+-7=0 7(1/7)=1
9
Q
N
A
natural numbers (1,2,3,4)
10
Q
W
A
whole numbers (0,1,2,3,4)
11
Q
Z
A
integers (positive and negative)
12
Q
Q
A
rational numbers (any number that can be written as a fraction) ex. -2/3, 0.368
13
Q
I
A
irrational (cannot be written as a fraction) contains pi or square root
14
Q
R
A
real numbers
