How is an absolute value represented mathematically?

The absolute value of a number is mathematically represented by vertical bars placed on either side of the number. For example, the absolute value of -5 is written as | -5 |, which equals 5. This notation effectively conveys the distance of a number from zero on the number line, disregarding any negative sign.

The use of vertical bars is a universally accepted convention in mathematics for denoting absolute value, making it clear and easily recognizable. The concept behind absolute value is foundational in mathematics, especially in contexts such as solving inequalities and understanding distance.