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# DS - gmatprep - xy plane

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Manager
Joined: 09 Dec 2006
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DS - gmatprep - xy plane [#permalink]

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13 Sep 2007, 09:32
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Director
Joined: 03 May 2007
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Schools: University of Chicago, Wharton School
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Re: DS - gmatprep - xy plane [#permalink]

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13 Sep 2007, 09:58
Should be C. since the slope = -1/10, y is 1/10.
Manager
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Re: DS - gmatprep - xy plane [#permalink]

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13 Sep 2007, 10:06
Fistail wrote:
Should be C. since the slope = -1/10, y is 1/10.

C was my answer, but OA is different
Director
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Re: DS - gmatprep - xy plane [#permalink]

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13 Sep 2007, 10:08
I think its E .

Stmt1 = not sufficient . because just knowing x is not enough.
Stmt2 = not sufficient . because just knowing slope also its not sufficient.

Combining both .
Still not sure because we don’t know where x is intercepted . It could be 1.5 or 20 or even 100 .And depending on that the y-intercept will vary . And so the line may or may not intersect the circle.

So E
Senior Manager
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15 Sep 2007, 09:14
it cannot be C

we don't know about how far it lies from 1 (x intercept)

Ans: E
15 Sep 2007, 09:14
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# DS - gmatprep - xy plane

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