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GMAT Prep?? (Coordinate Geometry)


 
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dferm
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PostPosted: Fri May 09, 2008 1:56 pm    Post subject: GMAT Prep?? (Coordinate Geometry) Reply with quote
Please Help...


I am having probs understanding Coordinate Geometry..

Thanks..
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amitansu
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PostPosted: Mon May 12, 2008 9:29 am    Post subject: Reply with quote
I might be little biased towards the answer Smile as is indicated in q.

The q asks what is the y-intercept or ordinate ?

From 1: Slope is 3 times y-intercept.
m=3C here y=mx+c (where m is slope and c is constant)

Nothing can be achieved as no values of m and c or any coordinate pionts are known.Insufficient

From 2: x-intercept/abscissa of line is -1/3.
Putting it in equation : y=mx+c we have mx+c=0
can't get anything out of it.Insufficient

Combining both: also we can't achieve anything as the value of ordinate.Insufficient.

Any better explanation would be appreciated.
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Magellan
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PostPosted: Mon May 12, 2008 10:00 am    Post subject: Reply with quote
Please, disregard my post, it was wrong.
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