Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 06 Jul 2015, 23:23

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# abs value

Author Message
TAGS:
CEO
Joined: 21 Jan 2007
Posts: 2760
Location: New York City
Followers: 9

Kudos [?]: 391 [0], given: 4

abs value [#permalink]  02 Mar 2008, 22:42
can someone explain this to me. I dont understand the logic behind it.

how do we go from
|x| = |y|
to
x/y = |1|
_________________

You tried your best and you failed miserably. The lesson is 'never try'. -Homer Simpson

Senior Manager
Joined: 28 Feb 2007
Posts: 306
Followers: 1

Kudos [?]: 32 [1] , given: 0

Re: abs value [#permalink]  03 Mar 2008, 00:35
1
KUDOS
|x| = |y| means x=+-y or y=+-X
so in any case x/y=+-1
SVP
Joined: 29 Aug 2007
Posts: 2493
Followers: 59

Kudos [?]: 579 [0], given: 19

Re: abs value [#permalink]  03 Mar 2008, 00:44
bmwhype2 wrote:
can someone explain this to me. I dont understand the logic behind it.

how do we go from
|x| = |y|
to
x/y = |1|

x/y could be 1 or -1. therefore is l1l.
_________________
GMAT Instructor
Joined: 04 Jul 2006
Posts: 1266
Followers: 24

Kudos [?]: 167 [0], given: 0

Re: abs value [#permalink]  03 Mar 2008, 01:03
You can say that |x/y| = 1 as long as x and y are not both 0, but not that x/y = | 1 |.
CEO
Joined: 21 Jan 2007
Posts: 2760
Location: New York City
Followers: 9

Kudos [?]: 391 [0], given: 4

Re: abs value [#permalink]  03 Mar 2008, 06:40
|x| = |y|

|x|/|y| = 1

|x/y| = 1

x/y = 1
-(x/y) = 1 --> x/y = -1

x/y = |1|
correct?
_________________

You tried your best and you failed miserably. The lesson is 'never try'. -Homer Simpson

Re: abs value   [#permalink] 03 Mar 2008, 06:40
Similar topics Replies Last post
Similar
Topics:
2 Dividing by a variable in abs value/inequality? 2 11 Feb 2015, 20:35
1 What inequality represents the condition 1<x<9? 11 24 May 2010, 17:21
1 value of A+B? and GCD=1 5 08 Oct 2008, 03:44
solving abs value equations 2 31 Oct 2007, 05:39
Abs Value Equation 2 16 Jul 2005, 06:42
Display posts from previous: Sort by