1
Properties
Statements that are true
for any number of
variables.
Identity Properties
1) Additive Identity
What do you add to get the same?
a + 0 = a
2) Multiplicative Identity
What do you mult. to get the
same?
a • 1 = a
Inverse Properties
1) Additive Inverse (Opposite)
a + (-a) = 0
2) Multiplicative Inverse
(Reciprocal)
a
1
a1
Properties of Equality
1) Reflexive: a= a
5 = 5
2) Symmetric: If a= bthen b= a.
If 4 = 2 + 2 then 2 + 2 = 4.
3) Transitive:If a= band b= c, then a= c.
If 4 = 2 + 2 and 2 + 2 = 3 + 1 then 4 = 3 + 1.
