MathGloss/A/Absolute Value

Examples

 * $$\left|+3\right| = 3$$
 * $$\left|-45\right| = 45$$
 * $$\left|0\right| = 0$$
 * $$\left|+5\right| =\left|-5\right| = 5$$

Absolute value properties
$$\text{1) if }\left|x\right| = a\qquad\text{then}\quad x=a \qquad\text{or}\quad x=-a$$ $$\text{2) if }\left|x\right| < a\qquad\text{then}\quad -a a\qquad\text{then}\quad x>a \qquad\text{or}\quad x<-a$$ $$\text{4) }\left|x\right|^2 = x ^ 2$$ $$\text{5) }\left|x\right| = sqr(x^2)$$