Page 22 - 091math-wb-w6-(equations&inequalities-1)

Workbook

PROPERTIES OF ABSOLUTE VALUE

If a and b are any real numbers, the following properties apply:

Property Example

a  a 

a b  b a

ab  a b

n
For n Z , a  a
n

a a
 ,b 0
b b

1. x  5 2. x  3  15

1. 2  x 5  17 4. x  5  6
2

5. 2 x 7 .3 11 5  6. 3 2 x  9  7 19

Class Exercises: Let x R and m,n R 

Property Example

a 0

22 091math-wb-w6-(equations&inequalities-1)