In the xy-plane, if line l has negative slope and passes : GMAT Data Sufficiency (DS)
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# In the xy-plane, if line l has negative slope and passes

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Intern
Joined: 07 Sep 2012
Posts: 39
GMAT 1: 680 Q50 V32
GMAT 2: 700 Q49 V36
Followers: 0

Kudos [?]: 7 [0], given: 99

In the xy-plane, if line l has negative slope and passes [#permalink]

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17 Sep 2012, 02:14
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Difficulty:

55% (hard)

Question Stats:

58% (01:42) correct 42% (01:16) wrong based on 31 sessions

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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
Senior Manager
Joined: 28 Jun 2009
Posts: 454
Location: United States (MA)
Followers: 18

Kudos [?]: 166 [2] , given: 46

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

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17 Sep 2012, 02:40
2
KUDOS

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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Concentration: Strategy, General Management
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Followers: 46

Kudos [?]: 546 [0], given: 23

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

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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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