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Mathematics 22 Online
OpenStudy (anonymous):

Find -|-4|.

jimthompson5910 (jim_thompson5910):

The absolute value of any number is just the distance that number is from 0 ex: |-7| = 7 because the number -7 is seven units away from 0 on the number line

jimthompson5910 (jim_thompson5910):

so what is |-4| ?

OpenStudy (anonymous):

=4

jimthompson5910 (jim_thompson5910):

|-4| = 4 so -|-4| = -4

OpenStudy (anonymous):

oh okay so -|-4| = -4?

jimthompson5910 (jim_thompson5910):

yep

jimthompson5910 (jim_thompson5910):

just gotta keep that negative outside the absolute value in mind

jimthompson5910 (jim_thompson5910):

normally |-4| = 4, which is positive so |-4| is positive, but negating that to get -|-4| makes the result negative

OpenStudy (anonymous):

Oh okay I see thanks!

jimthompson5910 (jim_thompson5910):

np

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