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In the xy—plane, is the x—intercept of the line L positive?

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In the xy—plane, is the x—intercept of the line L positive?  [#permalink]

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New post Updated on: 12 Jan 2019, 06:39
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A
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Question Stats:

95% (01:00) correct 5% (00:29) wrong based on 35 sessions

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In the xy—plane, is the x—intercept of the line L positive?

(1) Line passes through (—4, —2)

(2) Slope of the line L is negative.

Source: Experts Global GMAT
Difficulty Level: 600

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Originally posted by SajjadAhmad on 09 Oct 2018, 18:20.
Last edited by SajjadAhmad on 12 Jan 2019, 06:39, edited 1 time in total.
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Re: In the xy—plane, is the x—intercept of the line L positive?  [#permalink]

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New post 09 Oct 2018, 18:39
1
SajjadAhmad wrote:
In the xy—plane, is the x—intercept of the line L positive?

(1) Line passes through (—4, —2)

(2) Slope of the line L is negative.

EG


(1) Line passes through (—4, —2)
So the point is in third quadrant..
If the slope is POSITIVE, it is possible that x-intercept is positive.
If the slope is negative, the line will never be in quadrant I, so always NO
Insufficient

(2) Slope of the line L is negative.
Nothing much
Insufficient

Combined
Always no as line will never cross quadrant I
Sufficient

C
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1) Absolute modulus : http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html
3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html
4) Base while finding % increase and % decrease : https://gmatclub.com/forum/percentage-increase-decrease-what-should-be-the-denominator-287528.html


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Re: In the xy—plane, is the x—intercept of the line L positive?   [#permalink] 09 Oct 2018, 18:39
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In the xy—plane, is the x—intercept of the line L positive?

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