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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: 1383
Followers: 2

Kudos [?]: 20 [1] , given: 0

Many a times in the pratice tests we are seeing in [#permalink]  11 Mar 2007, 09:36
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KUDOS
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!
Director
Joined: 13 Dec 2006
Posts: 520
Location: Indonesia
Followers: 6

Kudos [?]: 110 [0], given: 0

[#permalink]  11 Mar 2007, 10:00
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
Senior Manager
Joined: 01 Oct 2006
Posts: 498
Followers: 1

Kudos [?]: 20 [0], given: 0

[#permalink]  11 Mar 2007, 10:02
IMO, you would just get values of the constant and nothing about slope so one can not commet on the slope of the line
VP
Joined: 28 Mar 2006
Posts: 1383
Followers: 2

Kudos [?]: 20 [0], given: 0

[#permalink]  11 Mar 2007, 10:37
Thanks guys for the responses
[#permalink] 11 Mar 2007, 10:37
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# Many a times in the pratice tests we are seeing in

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