GMAT Quantitative Review
3.0 Math Review
3.2 Algebra
9. Absolute Value
The absolute value of x, denoted , is defined to be x if
and −x if
. Note that
denotes the nonnegative square root of x2, and so
.
The absolute value of x, denoted , is defined to be x if
and −x if
. Note that
denotes the nonnegative square root of x2, and so
.