It is currently 24 Sep 2017, 18:04

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

If ab is not equal to 0, and points (-a,b) and (-b,a) are in

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Intern
Intern
avatar
Joined: 23 Jun 2009
Posts: 47

Kudos [?]: 26 [0], given: 6

If ab is not equal to 0, and points (-a,b) and (-b,a) are in [#permalink]

Show Tags

New post 24 Jul 2009, 13:20
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

100% (00:02) correct 0% (00:00) wrong based on 11 sessions

HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If ab is not equal to 0, and points (-a,b) and (-b,a) are in the same quadrant of the xy-plane, is point (-x,y) in this same quadrant?

1) xy > 0
2) ax > 0


Thanks a lot. It's from the GMATPrep Software.

Kudos [?]: 26 [0], given: 6

1 KUDOS received
Current Student
User avatar
Status: What's your raashee?
Joined: 12 Jun 2009
Posts: 1837

Kudos [?]: 270 [1], given: 52

Location: United States (NC)
Concentration: Strategy, Finance
Schools: UNC (Kenan-Flagler) - Class of 2013
GMAT 1: 720 Q49 V39
WE: Programming (Computer Software)
Reviews Badge
Re: (Help) DS Problem #1: Please take a stab, anyone! [#permalink]

Show Tags

New post 24 Jul 2009, 13:41
1
This post received
KUDOS
uzonwagba wrote:
If ab is not equal to 0, and points (-a,b) and (-b,a) are in the same quadrant of the xy-plane, is point (-x,y) in this same quadrant?

1) xy > 0
2) ax > 0


Thanks a lot. It's from the GMATPrep Software.


for the 2 to be in same quadrant they must have equal signs so a,b is either +,+ or -,-.

1) INSUFF. Since that means both x and y have same signs (--/++) but we dont know which quadrant it is?
2) INSUFF. we know nothing about Y

C - if we combine them we know X*Y>0 so they have same signs. Now since A*X>0 that means X's sign is same as A's so we know (-x,y) is in same quadrant?>
_________________

If you like my answers please +1 kudos!

Kudos [?]: 270 [1], given: 52

Intern
Intern
avatar
Joined: 23 Jun 2009
Posts: 47

Kudos [?]: 26 [0], given: 6

Re: (Help) DS Problem #1: Please take a stab, anyone! [#permalink]

Show Tags

New post 24 Jul 2009, 13:45
Thanks! I appreciate you! ;)

Kudos [?]: 26 [0], given: 6

Re: (Help) DS Problem #1: Please take a stab, anyone!   [#permalink] 24 Jul 2009, 13:45
Display posts from previous: Sort by

If ab is not equal to 0, and points (-a,b) and (-b,a) are in

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.