Is the point A(x, y) in 2rd Quadrant? 1. (x+1 y+1) in 2nd : DS Archive
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 17 Jan 2017, 06:35

### 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

# Is the point A(x, y) in 2rd Quadrant? 1. (x+1 y+1) in 2nd

Author Message
Senior Manager
Joined: 02 Mar 2004
Posts: 327
Location: There
Followers: 1

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

Is the point A(x, y) in 2rd Quadrant? 1. (x+1 y+1) in 2nd [#permalink]

### Show Tags

30 Apr 2004, 08:17
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

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

Is the point A(x, y) in 2rd Quadrant?

1. (x+1 y+1) in 2nd quadrant
2. (x-1, y-1) in 2nd quadrant
SVP
Joined: 30 Oct 2003
Posts: 1793
Location: NewJersey USA
Followers: 5

Kudos [?]: 98 [0], given: 0

### Show Tags

30 Apr 2004, 11:35
A) (x+1) is -ve so x < -1 (y+1) is +ve so y could be -0.5 so we dont know from this as well
B) (x-1) is -ve and (y-1) is +ve to be in the 2nd Quadrant
mening y > 1 but x could be <0 or < 1 so we dont know

Combine both

(x+1) is -ve and (x-1) is -ve so x < -1
(y+1) is +ve and (y-1) is +ve so y > 1 and is +ve

so X and Y are in 2nd quadrant.
Director
Joined: 03 Jul 2003
Posts: 652
Followers: 3

Kudos [?]: 91 [0], given: 0

### Show Tags

30 Apr 2004, 13:56
anandnk wrote:

Agree with Anand, the answer shoud be C
CEO
Joined: 15 Aug 2003
Posts: 3460
Followers: 67

Kudos [?]: 861 [0], given: 781

### Show Tags

08 May 2004, 17:47
Senior Manager
Joined: 02 Mar 2004
Posts: 327
Location: There
Followers: 1

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

### Show Tags

09 May 2004, 02:11
hallelujah1234 wrote:
Is the point A(x, y) in 2rd Quadrant?

1. (x+1 y+1) in 2nd quadrant
2. (x-1, y-1) in 2nd quadrant

Is x < 0, y > 0?

1. x < 0, y > -1 Insufficient
2. x < 1, y > 0 insufficient

1 and 2: x < 0 and y > 0--sufficient

C it is
Manager
Joined: 07 May 2004
Posts: 183
Location: Ukraine, Russia(part-time)
Followers: 2

Kudos [?]: 15 [0], given: 0

### Show Tags

11 May 2004, 04:49
hallelujah1234 wrote:
Is the point A(x, y) in 2rd Quadrant?

1. (x+1 y+1) in 2nd quadrant
2. (x-1, y-1) in 2nd quadrant

If A and B are in the same quadrant, then a*A + (1-a)*B are in that quadrant(if and only if 1 > a > 0). Let a be 1/2 => 1/2(x+1,y+1)+1/2(x-1,y-1) = (x,y). => 1 and 2 together are sufficient.

1 alone is not (-1/2,1/2) is the example.

2 alone is also not sufficient, (-1/2,1/2) is the example again.
Re: DS-75   [#permalink] 11 May 2004, 04:49
Display posts from previous: Sort by