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gmatrookie1 · 07-06-2008, 01:56 AM

If the points A & B in the coordinate plane have coordinate of (-1/2, -1) and (1/2, 1/3) respectively what is the distance between A & B?

krovvidy · 07-06-2008, 05:12 PM

distance between (-1/2, -1) and (1/2, 1/3) is given by:
sqrt[(-1/2 - 1/2)^2 + (-1 - 1/3)^2]
i.e., sqrt[1 + 16/9]
i.e., 5/3

ASKajan · 07-06-2008, 09:35 PM

This question revolves around coordinate geometry. The formula is expressed as:

and is derived from pythagorem theorem. You could always plot the points and use pythagorem theorem but as you are starved for time in GMAT land...use this formula to save yourself some time.

gmatrookie1 · 07-07-2008, 07:18 PM

AsKajan

Is there any place I can get some of these formulas from? Besides the one posted in Kaplan & OUG

gmatrookie1 · 07-07-2008, 07:18 PM

Thanks for the response!

ASKajan · 07-08-2008, 01:51 AM

Sparks Notes and some Wikipedia articles are useful. I'd suggest googling the concepts and compiling your own notes and formulas as you study.

RamN · 07-08-2008, 07:01 AM

5/3 - is the answer !

arindambanerji · 07-09-2008, 09:16 AM

Imo 5/3

GmatG · 07-10-2008, 07:25 AM

IMO 5/3

Try these links for online help on Geometry and co-ordinate geometry
Geometry Help (with worked solutions & videos)
Coordinate Geometry (with worked solutions)

07-06-2008, 01:56 AM	#1 (permalink)
gmatrookie1 Within my grasp! Join Date: Jun 2008 Posts: 149	Distance between 2 points If the points A & B in the coordinate plane have coordinate of (-1/2, -1) and (1/2, 1/3) respectively what is the distance between A & B?

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07-06-2008, 05:12 PM	#2 (permalink)
krovvidy Getting a hang of it ... Join Date: Feb 2008 Posts: 780	distance between (-1/2, -1) and (1/2, 1/3) is given by: sqrt[(-1/2 - 1/2)^2 + (-1 - 1/3)^2] i.e., sqrt[1 + 16/9] i.e., 5/3

07-06-2008, 09:35 PM	#3 (permalink)
ASKajan Within my grasp! Join Date: Jun 2004 Location: Jacksonville, Florida Posts: 148	This question revolves around coordinate geometry. The formula is expressed as: and is derived from pythagorem theorem. You could always plot the points and use pythagorem theorem but as you are starved for time in GMAT land...use this formula to save yourself some time.

07-07-2008, 07:18 PM	#4 (permalink)
gmatrookie1 Within my grasp! Join Date: Jun 2008 Posts: 149	AsKajan Is there any place I can get some of these formulas from? Besides the one posted in Kaplan & OUG

07-07-2008, 07:18 PM	#5 (permalink)
gmatrookie1 Within my grasp! Join Date: Jun 2008 Posts: 149	Thanks for the response!

07-08-2008, 01:51 AM	#6 (permalink)
ASKajan Within my grasp! Join Date: Jun 2004 Location: Jacksonville, Florida Posts: 148	Sparks Notes and some Wikipedia articles are useful. I'd suggest googling the concepts and compiling your own notes and formulas as you study.

07-08-2008, 07:01 AM	#7 (permalink)
RamN Trying to make mom and pop proud Join Date: Jul 2008 Posts: 25	5/3 - is the answer !

07-09-2008, 09:16 AM	#8 (permalink)
arindambanerji Within my grasp! Join Date: Feb 2008 Posts: 167	Imo 5/3

07-10-2008, 07:25 AM	#9 (permalink)
GmatG Within my grasp! Join Date: Oct 2007 Posts: 122	IMO 5/3 Try these links for online help on Geometry and co-ordinate geometry Geometry Help (with worked solutions & videos) Coordinate Geometry (with worked solutions)

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