How do you find the absolute value of something?

Answer 1

If a number is not less than zero then that is its absolute value. If a number is less than zero, its negative is its absolute value.

So, if |x| denotes the absolute value of x, then

|x| = -x for x<0 [since if x<0 then -x>0]

and

|x| = x for x>= 0