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GRE Math Challenge #65- Coordinate Geometry (a,b)
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sandy
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GRE Math Challenge #65- Coordinate Geometry (a,b) [#permalink] New post  03 May 2015, 00:55
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90% (00:07) correct 10% (00:01) wrong based on 10 sessions

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Quantity A: a
Quantity B: b

• Quantity A is greater.
• Quantity B is greater.
• Both Quantities are Equal
• Cannot be determined

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wongpcla
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Re: GRE Math Challenge #65- Coordinate Geometry (a,b) [#permalink] New post  17 Jan 2018, 01:29
why the answer is A? there's no enough info about it
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Re: GRE Math Challenge #65- Coordinate Geometry (a,b) [#permalink] New post  17 Jan 2018, 23:09
1
In the x-y coordinate system (x,y) are +ve or -ve by there placement in 1 of the 4 quadrants
1st quadrant: x is +ve, y is +ve
2nd quadrant: x is -ve, y is +ve
3rd quadrant: x is -ve, y is -ve
4th quadrant: x is +ve, y is -ve
(A)
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sharmaapeksha960
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Re: GRE Math Challenge #65- Coordinate Geometry (a,b) [#permalink] New post  18 Jan 2018, 22:49
Quantity A is greater
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Linamrs
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Re: GRE Math Challenge #65- Coordinate Geometry (a,b) [#permalink] New post  26 Jan 2018, 10:17
A is positive because it is on the right, b is negative because it is down. that mean that A>B
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