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# Lines n and p lie in the xy-plane. Is the slope of line n

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Lines n and p lie in the xy-plane. Is the slope of line n [#permalink]  25 Sep 2006, 21:37
Lines n and p lie in the xy-plane. Is the slope of line n less than slope of line P ?

a.Lines n and p intersect at the point (5,1)
b.The y-intercept of line n is greater than the y-intercept of line p
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One more for C.

a.Lines n and p intersect at the point (5,1)
insufficient - this does not tell us which line is climbing at a faster rate (ir has a greater slope) - remove A and D
b.The y-intercept of line n is greater than the y-intercept of line p
insufficient - line n could have slope = 0 (or -ve) and line p could have an increasing slope. remove B

for C: Lines intersect AND n has a greater y intercept. So p is climbing at a rate faster than n. thus, n has a smaller slope than p. sufficient.
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I would say E

each statement is insufficient.
using both clues we know where the point is but we don't know where the y-intercepts are related to the point.

if y-intercepts for both lines is above point A (Y>1) then slope of n <slope of y. If below 1 than reverse.

what is the OA?
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# Lines n and p lie in the xy-plane. Is the slope of line n

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