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# Circle C and line k lie in the x-y plane. If circle C is

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Intern
Joined: 26 Jan 2008
Posts: 25
Circle C and line k lie in the x-y plane. If circle C is [#permalink]

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12 Sep 2008, 11:15
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Circle C and line k lie in the x-y plane. If circle C is centered at the origin and has a radius of 1, does line k intersect circle C?

1) the x-intercept of line k is greater then 1

2) the slope of line k is -1/10
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Joined: 29 Aug 2007
Posts: 2457

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12 Sep 2008, 14:21
ttwang56 wrote:
Circle C and line k lie in the x-y plane. If circle C is centered at the origin and has a radius of 1, does line k intersect circle C?

1) the x-intercept of line k is greater then 1

2) the slope of line k is -1/10

E. Alone neither is suff.
togather: providing slope doesnot help finding the OA since nither x nor y co-ordinate is available. x could be 1.00000001 or 10. so insuff.

//E//
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Re: DS- circle problem   [#permalink] 12 Sep 2008, 14:21
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