Does the line pass through the first quadrant? I. the line

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Does the line pass through the first quadrant? I. the line [#permalink]

24 Mar 2006, 20:47

Does the line pass through the first quadrant?
I. the line has x-intercept=-1
II. the slope of the line is greater than 1

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Re: coordinates [#permalink]

24 Mar 2006, 22:49

joemama142000 wrote:

Does the line pass through the first quadrant?
I. the line has x-intercept=-1
II. the slope of the line is greater than 1

A. any line with +ve slop passes through ist qdt.

update: i meant B, though it seems incorrect..

Last edited by HIMALAYA on 25 Mar 2006, 07:21, edited 1 time in total.

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Re: coordinates [#permalink]

24 Mar 2006, 23:38

joemama142000 wrote:

Does the line pass through the first quadrant?
I. the line has x-intercept=-1
II. the slope of the line is greater than 1

I go for C coz we have to consider the case in which the slope of the line is infinitively large ( the line is vertical)

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Re: coordinates [#permalink]

24 Mar 2006, 23:52

laxieqv wrote:

joemama142000 wrote:

Does the line pass through the first quadrant?
I. the line has x-intercept=-1
II. the slope of the line is greater than 1

I go for C coz we have to consider the case in which the slope of the line is infinitively large ( the line is vertical)

Laxie, please explain! :-D

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Re: coordinates [#permalink]

25 Mar 2006, 00:02

laxieqv wrote:

joemama142000 wrote:

Does the line pass through the first quadrant?
I. the line has x-intercept=-1
II. the slope of the line is greater than 1

I go for C coz we have to consider the case in which the slope of the line is infinitively large ( the line is vertical)

Laxie,

Shouldn't it be E then? The line x = -1 has infinite slope (which is >1) and also x intercept = -1 and doesn't pass through first Quadrant.

Other lines such as:
y = 2x+2 have slope > 1 and x intercept = -1 abd pass through 1st Q.
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Re: coordinates [#permalink]

25 Mar 2006, 00:02

vivek123 wrote:

laxieqv wrote:

joemama142000 wrote:

Does the line pass through the first quadrant?
I. the line has x-intercept=-1
II. the slope of the line is greater than 1

I go for C coz we have to consider the case in which the slope of the line is infinitively large ( the line is vertical)

Laxie, please explain! :-D

refer to my illustration. The point here is that : with a vertical line, we can understand that its slope is infinitively positively big ( greater than 1 for sure) OR we can also say that the slope of a vertical line doesn't exist. That makes it controversial for this problem.

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Re: coordinates [#permalink]

25 Mar 2006, 00:04

giddi77 wrote:

laxieqv wrote:

joemama142000 wrote:

Does the line pass through the first quadrant?
I. the line has x-intercept=-1
II. the slope of the line is greater than 1

I go for C coz we have to consider the case in which the slope of the line is infinitively large ( the line is vertical)

ah, yes, i meant E :razz:

The trap here is that we have to consider the case of a vertical line as well.

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Re: coordinates [#permalink]

25 Mar 2006, 00:55

laxieqv wrote:

giddi77 wrote:

laxieqv wrote:

joemama142000 wrote:

Does the line pass through the first quadrant?
I. the line has x-intercept=-1
II. the slope of the line is greater than 1

I go for C coz we have to consider the case in which the slope of the line is infinitively large ( the line is vertical)

ah, yes, i meant E :razz:

The trap here is that we have to consider the case of a vertical line as well.

Phew...! now I'm with you. I asked for explanation since I got "E" & you said "C", I was confused!

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Re: coordinates [#permalink]

25 Mar 2006, 07:54

HIMALAYA wrote:

joemama142000 wrote:

Does the line pass through the first quadrant?
I. the line has x-intercept=-1
II. the slope of the line is greater than 1

A. any line with +ve slop passes through ist qdt.

update: i meant B, though it seems incorrect..

opppssss.. i only took +ve slop not infinite. :oops:

thanks guys.

Re: coordinates [#permalink] 25 Mar 2006, 07:54

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Does the line pass through the first quadrant? I. the line

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Does the line pass through the first quadrant? I. the line

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