- #1

vincentm

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I got stuck on a

[tex]-|-8|[/tex]

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- Thread starter vincentm
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- #1

vincentm

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I got stuck on a

[tex]-|-8|[/tex]

- #2

Chi Meson

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Read this as "negative one times the absolute value of negative eight."

zat help?

zat help?

- #3

HallsofIvy

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What is |-8|?

What is the negative of that?

What is the negative of that?

- #4

vincentm

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Chi Meson said:Read this as "negative one times the absolute value of negative eight."

zat help?

this is integers right?

so uhm..

[tex]-1|-8| = 7[/tex] ?

- #5

TD

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It can be defined by saying:

|x| = x if x ≥ 0

|x| = -x if x < 0

Which is just a more mathematical way of saying that positives stay positive and negatives become positives.

A few examples may help:

|2| = 2

|-3| = 3

|0| = 0

|-5/3| = 5/3

Now, you can solve yours?

- #6

vincentm

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-|-8|= 8

right?

right?

- #7

TD

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What is |-8| ? And then again a -, since it say - (|-8|)

- #8

vincentm

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So the answer is -8TD said:What is |-8| ? And then again a -, since it say - (|-8|)

- #9

Chi Meson

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that's right.

- #10

vincentm

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Thank you ^.^ so can i get a laymens explanation(if that is possible) on how this answer is achieved?

Last edited:

- #11

EnumaElish

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- #12

HallsofIvy

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[tex]-1|-8| = 7[/tex]

I think you recognized that |-8|= 8 but then you

-|-8| or -1|-8| does not mean subtract the two numbers- it means multiply!

- #13

vincentm

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thank you.HallsofIvy said:

[tex]-1|-8| = 7[/tex]

I think you recognized that |-8|= 8 but then yousubtracted 1

-|-8| or -1|-8| does not mean subtract the two numbers- it means multiply!

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