if x is a real number, then
\(|x| = x\ when\ x\geq 0\)
\(|x|=-x\ when\ x<0\)
This definition indicates that when x is positive or 0, then x is its own absolute value.
However, when x is negative, then -x is its absolute value. Thus |x|is also non-negative.
\(|x|\geq 0\) for all real numbers x
In this case, we will use the definition of absolute value.
\(|0| = 0\)
Therefore, \(|0| = 0\)