Chapter P - Section P.1 - Algebraic Expressions, Mathematical Models, and Real Numbers - Concept and Vocabulary Check - Page 16: 12

absolute value;$x$;$-x$

Work Step by Step

Absolute value is symbolized by vertical lines $||$. Since the absolute value is the distance from 0 on a number line, positive numbers already represent this distance, and negative numbers (less than 0) represent the negative of this distance.

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