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In the xy plane shown below,

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Manager
Joined: 18 Feb 2015
Posts: 79
In the xy plane shown below,  [#permalink]

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23 Dec 2016, 12:13
00:00

Difficulty:

5% (low)

Question Stats:

97% (00:47) correct 3% (00:55) wrong based on 49 sessions

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In the xy plane shown below, what are the coordinates of point Q?

1) (-2,0)
2) (5,0)
3) (4,9)
4) (3,2)
5) (0,0)

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Magoosh GMAT Instructor
Joined: 28 Dec 2011
Posts: 4476
Re: In the xy plane shown below,  [#permalink]

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26 Dec 2016, 19:12
HarveyKlaus wrote:
In the xy plane shown below, what are the coordinates of point Q?

1) (-2,0)
2) (5,0)
3) (4,9)
4) (3,2)
5) (0,0)

Dear HarveyKlaus,

I'm happy to respond.

In all honesty, my friend, this question is a little easier than anything the GMAT Quant would ask. We know point Q is on the x-axis, so it has to have a y-coordinate of zero. We know there's a right angle at Q--PQ is perpendicular to the x-axis--so PQ must be vertical and parallel to the y-axis. Therefore, Q must have the exact same x-coordinate as does P.

Q = (-2, 0) OA = (A)

Here are some more GMAT-like questions on Coordinate Geometry:
GMAT Quant: Coordinate Geometry Practice Questions
Challenging Coordinate Geometry Practice Questions

Does all this make sense?
Mike
_________________
Mike McGarry
Magoosh Test Prep

Education is not the filling of a pail, but the lighting of a fire. — William Butler Yeats (1865 – 1939)
Re: In the xy plane shown below,   [#permalink] 26 Dec 2016, 19:12
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