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31 Mar 2016, 10:15
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
69% (01:30) correct
31%
(01:28)
wrong
based on 139
sessions
History
Date
Time
Result
Not Attempted Yet
In the xy–coordinate plane, a line segment is drawn to join the points A (2, 1) and C(4, 3). If point B lies on line segment AC, is AB = BC?
(1) The x-coordinate of point B is 3
(2) The y-coordinate of point B is 2
(1) The x-coordinate of point B is 3
(2) The y-coordinate of point B is 2
31 Mar 2016, 15:05
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robu
Dear robu,
I'm happy to respond.
I'm curious about the source. This feels not so much like a real GMAT question, but more like a review question from a review book about introductory coordinate geometry problems. This is about seven notches easier than an actual GMAT question. Once a line is specified, then obviously specifying either the x- or y-coordinate of the point will specify the exact point on the line, which will full establish whether the point is the midpoint.
Also, here's a diagram. The fact that this line has a slope of one and involves three consecutive lattice points is further evidence of how simplistic this question is:
Attachment:
midpoint diagram.JPG [ 18.05 KiB | Viewed 4604 times ]
Everything is significant. Answer = (D).
For coordinate geometry questions that are significantly more test-like, see:
Challenging Coordinate Geometry Practice Questions
Mike
09 Jun 2016, 04:36
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In the xy–coordinate plane, a line segment is drawn to join the points A (2, 1) and C(4, 3). If point B lies on line segment AC, is AB = BC?
(1) The x-coordinate of point B is 3
(2) The y-coordinate of point B is 2
(1) The x-coordinate of point B is 3
(2) The y-coordinate of point B is 2
Attachments
PQS656S.png [ 9.74 KiB | Viewed 4390 times ]
