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X and Y co-ordinates identified???

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sanath.kumar.patro
 Post subject: X and Y co-ordinates identified???
 Post Posted: Sun May 08, 2011 11:08 am 
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Students


Posts: 4
f xy ≠ 0 , which quadrant is point (x, y) in?
(1) (1 − x) /(1− y)> 0

(2) x+y=20

Source-princeton review
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jnelson0612
 Post subject: Re: X and Y co-ordinates identified???
 Post Posted: Sun May 08, 2011 9:04 pm 
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ManhattanGMAT Staff


Posts: 2390
sanath, I'm happy to help you, but am wondering if you have been able to rule out any of the options using the BD/ACE grid.

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Jamie Nelson
ManhattanGMAT Instructor
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