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

It is currently 11 Jul 2014, 20:08

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

ds: cordinate geometry

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Senior Manager
Senior Manager
avatar
Joined: 02 Feb 2004
Posts: 345
Followers: 1

Kudos [?]: 8 [0], given: 0

GMAT Tests User
ds: cordinate geometry [#permalink] New post 16 Apr 2005, 15:02
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
pls explain
Attachments

0013.jpg
0013.jpg [ 6.8 KiB | Viewed 235 times ]

Director
Director
avatar
Joined: 18 Feb 2005
Posts: 674
Followers: 1

Kudos [?]: 2 [0], given: 0

GMAT Tests User
Re: ds: cordinate geometry [#permalink] New post 16 Apr 2005, 16:00
mirhaque wrote:
pls explain


A is the answer


The slope of any line ax+by+c = 0 is -b/a .

From A we know that a*b <0 ie., either a is <0 or b<0.

Since slope is -b/a the slope is +ve......
Director
Director
avatar
Joined: 04 Jul 2004
Posts: 905
Followers: 3

Kudos [?]: 17 [0], given: 0

GMAT Tests User
 [#permalink] New post 16 Apr 2005, 17:11
(B)

Background Calculation: Line intersect X axis in -ve.
=> y = 0 => x= (-C/A)
=> for x to be negetive, (C/A) should be +ve.

So Modified Qus: whether C/A is +ve. (note question is: Are you able to answer this question.)
Now,
i) A*B -ve => either A -ve and B +ve or A +ve or B -ve
A can be +ve or ve and no information about C. So Insufficient.

ii) A*C > 0 => either A and C +ve or A and C -ve. In both cases C/A is +ve. => x -ve. => Sufficient
  [#permalink] 16 Apr 2005, 17:11
    Similar topics Author Replies Last post
Similar
Topics:
cordinate geometry ds paper test blover 5 17 Sep 2008, 00:31
Paper test question cordinate geometry involving inequality blover 4 10 Sep 2008, 07:55
DS - Geometry AJB77 5 05 Jul 2005, 08:17
DS: Geometry gayathri 4 14 Dec 2004, 07:12
DS: Geometry gayathri 8 07 Dec 2004, 15:57
Display posts from previous: Sort by

ds: cordinate geometry

  Question banks Downloads My Bookmarks Reviews Important topics  


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

Powered by phpBB © phpBB Group and phpBB SEO

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®.