
absolute value


The magnitude of a number regardless of its sign. Hence, the absolute value of a number "n" is always positive or zero, written as n. When the number "n" is represented on a number line, its absolute value is the distance from the origin to that number.
n = n if n > 0 n = n if n < 0 4.3 = 4.3 4.3 = 4.3 The following properties hold: 1) ab = ab; 2) a+b < a + b; 3) ab > a  b; 4) for a > 0, x < a if and only if a < x < a.

