Whats the absolute value of -9?

1 Answer
Alan P.
Jul 7, 2015

The absolute value of -9 (written #abs(-9)#) is #9#

Explanation:

The absolute value of a number is the (positive) magnitude of its distance from 0 (or from #(0,0)# if dealing with the Complex plane).

Stated another way, for any Real number x
#color(white)("XXXX")##{(abs(x) = -x if x<0 ),(abs(x) = x if x>=0):}#

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