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In the xy-plane, line l and line k intersect at the point

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Joined: 22 Jul 2008
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Location: Bangalore,Karnataka
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Kudos [?]: 129 [0], given: 11

In the xy-plane, line l and line k intersect at the point [#permalink]

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New post 05 Jan 2010, 08:00
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Difficulty:

  45% (medium)

Question Stats:

84% (01:22) correct 16% (00:54) wrong based on 23 sessions

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In the xy-plane, line l and line k intersect at the point (16/5, 12/5). What is the slope of line l?

(1) The product of the slopes of line l and line k is –1.
(2) Line k passes through the origin.
[Reveal] Spoiler: OA
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Kudos [?]: 1670 [0], given: 75

Re: In the xy-plane, line l and line k intersect at the point [#permalink]

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New post 05 Jan 2010, 08:14
Expert's post
C..
si) gives us the relation in two lines ..the two r perpendicular to each other...not suff
sii) it gives us the 2nd pt on line k... we can find the slope of k from it but not l.. not suff.
combined frm k ,slope of l can be found frm reln in si..suff
_________________

Absolute modulus :http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html

Re: In the xy-plane, line l and line k intersect at the point   [#permalink] 05 Jan 2010, 08:14
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In the xy-plane, line l and line k intersect at the point

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