Asked by bracken
what are the bars around the numbers in integer questions
Answers
Answered by
Steve
they mean absolute value
|x| = x if x>=0
|x| = -x if x<0
so,
|7| = 7
|-5| = 5
|x| is never negative
|x| = x if x>=0
|x| = -x if x<0
so,
|7| = 7
|-5| = 5
|x| is never negative
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