**Absolute Value**

Absolute value makes a negative number positive. Positive numbers and 0 are left unchanged. The absolute value of *x* is written |*x*|. We write |–6| = 6 and |8| = 8.

Formally, the absolute value of a number is the distance between the number and the origin. This is a much more powerful definition than the "makes a negative number positive" idea. It connects the notion of absolute value to the absolute value of a complex number and the magnitude of a vector.

**See also**

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