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# Many a times in the pratice tests we are seeing in

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VP
Joined: 28 Mar 2006
Posts: 1367

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Many a times in the pratice tests we are seeing in [#permalink]

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11 Mar 2007, 10:36
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KUDOS
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Many a times in the pratice tests we are seeing in Coordinate Geometry these types of questions.

If 2 lines are given L and M and if the y-intercept of L is greater than that of M then can we comment on the slopes of L and M based on the values of y-intercepts? (like if the slopes are +ve or -ve)

And the 2nd question is vice-versa.

Can we comment on the y-intercept of a line based on the slope of the line?

Thanks!

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Director
Joined: 13 Dec 2006
Posts: 506

Kudos [?]: 244 [0], given: 0

Location: Indonesia

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11 Mar 2007, 11:00
No we cannot...

Equation for line is Y=mX + C where c is Y intercept and m is slope.

even for C being different, M can be same for two lines, which means slope can be same for any C.

Slope of the line m= tan@, where @ is the angle formed by the line on X axix, whereas C is to do with Y axis.

hope this clarify

regards,

Amardeep

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Senior Manager
Joined: 01 Oct 2006
Posts: 494

Kudos [?]: 39 [0], given: 0

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11 Mar 2007, 11:02
IMO, you would just get values of the constant and nothing about slope so one can not commet on the slope of the line

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VP
Joined: 28 Mar 2006
Posts: 1367

Kudos [?]: 38 [0], given: 0

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11 Mar 2007, 11:37
Thanks guys for the responses

Kudos [?]: 38 [0], given: 0

11 Mar 2007, 11:37
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