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Slope from Gmat prep1!

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Junior | Next Rank: 30 Posts
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Slope from Gmat prep1!

by Shiram » Thu Sep 23, 2010 5:55 am
If line l and k are lines in the xy-plane, is the product of the slope of l and k equal to -1?

1. Line l passes through the origin and the point (1,2)
2. Line K has x-intercept 4 and y-intercept 2.
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Source: — Data Sufficiency |
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by this_time_i_will » Thu Sep 23, 2010 9:29 am
stmt I wud give the eqn. for line l
stmt II wud give the eqn. for line k

once both the eqns. are known, lines slope can be found out.

IMO C
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Junior | Next Rank: 30 Posts
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by Shiram » Thu Sep 23, 2010 9:44 am
That's true!
Thank you!
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