Basic College Mathematics (10th Edition)

$\frac{1}{2}$
The absolute value of a number is the distance between that number and 0 on the number line. Therefore, absolute value will always be positive, because distance can only be a positive measurement. $|-\frac{1}{2}|=\frac{1}{2}$, because $-\frac{1}{2}$ is $\frac{1}{2}$ space from 0 on the number line