The absolute value of a number is the distance of that number from zero
on a number line. We use vertical bars to indicate absolute value.
For example, the absolute value of 8 is written |8|.
On the number line, we see that |8| = 8 since the distance from 8 to 0 is 8
Similarly, |8| = 8 since the distance from -8 to 0 is also 8 units.
Since distance cannot be negative, the absolute value of a number is
always nonnegative. That is, the absolute value of a number is always 0 or