which quadrant has point (a b)

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kobel51: Master | Next Rank: 500 Posts; Posts: 114; Joined: Tue Mar 24, 2009 9:19 am; Thanked: 1 times

by kobel51 » Fri Dec 20, 2013 6:02 pm

quadrant I - top right
........II - top left
.......III - bottom left
........IV - bottom right

If ab<>0, in what quadrant of the coordinate system above does point (a,b) lie?

1) (b,a) lies in quadrant IV.

2) (a,-b) lies in quadrant III.

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Source: Beat The GMAT — Data Sufficiency | Fri Dec 20, 2013 6:02 pm

Patrick_GMATFix: GMAT Instructor; Posts: 1052; Joined: Fri May 21, 2010 1:30 amFollowed by: 98 members; Thanked: 335 times

by Patrick_GMATFix » Fri Dec 20, 2013 6:41 pm

This solution is taken from the GMATFix App. My signature below has more info.

-Patrick

Check out my site: GMATFix.com

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