Calculating absolute value - Watch video (Algebra I)

Algebra I: Calculating absolute value

This is a free lesson from our course in Algebra I


	This lesson explains how to find the absolute value of a function. It has several examples that will help you understand the concept of absolute value of functions. the absolute value of x, denoted "\| x \|" (and which is read as "the absolute value of x"), is the distance of x from zero. This is why absolute value is never negative; absolute value only asks "how far?", not "in which direction?". This means not only that \| 3 \| = 3, because 3 is three units to the right of zero, but also that \| �3 \| = 3, because �3 is three units to the left of zero. Overall, the mathematical formula for absolute value is: \|x\| = x, if x >= 0 \|x\| = -x, if x < 0

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