They are always non-negative. The absolute values of any number and its additive inverse are the same: that is f(-x) = f(x) for all x.
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Mainly that somewhere in the equation there is an absolute value, usually of an expression that involves the variable.
Absolute value means disregarding the negative sign if it exists. So 5, +5, -5 all have the absolute value of 5.
The absolute value is when even if a negative number when put in absolute value signs is positive such as.. l-23 l the absolute value is 23. l..l are absolute value signs
The absolute value of something is its difference from 0. Absolute value of -607=607
Absolute value of 14 is 14.