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In the xy-plane, if line l has negative slope and passes

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In the xy-plane, if line l has negative slope and passes [#permalink] New post 17 Sep 2012, 02:14
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A
B
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E

Difficulty:

  55% (hard)

Question Stats:

59% (01:30) correct 41% (01:31) wrong based on 17 sessions
In the xy-plane, if line l has negative slope and passes through
the point ( -4, q), is the x-intercept of line l positive?
(1) q < 0
(2) The slope of line l is 4
[Reveal] Spoiler: OA
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Re: In the xy-plane, if line l has negative slope and passes [#permalink] New post 17 Sep 2012, 02:40
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Answer is A.

I solved it with diagram.

- (-4, q) can be in II or III quadrant, depending upon positive or negative q.
- Given that the line has negative scope, so it would be passing through given point and slanting towards right : like \

(1) q is negative, so (-4, q) is in III quadrant. This line will never intersect X axis in positive area. - sufficient
(2) Slope is positive. So line is like /. Can or can not have positive x intersect. - not sufficient
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Re: In the xy-plane, if line l has negative slope and passes [#permalink] New post 17 Sep 2012, 03:52
With the given information A is the correct ans, Although the question has a serious problem, as information given in one of the answer choices contradicts the information given in question. Questions says line l has negative slope but choice b says slope is 4. On GMAT never an answer choice would contrdict the question.

crackmba2012 wrote:
In the xy-plane, if line l has negative slope and passes through
the point ( -4, q), is the x-intercept of line l positive?
(1) q < 0
(2) The slope of line l is 4

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Re: In the xy-plane, if line l has negative slope and passes   [#permalink] 17 Sep 2012, 03:52
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