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# DS Geometery.JPG

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Director
Joined: 20 Sep 2006
Posts: 653

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21 Sep 2008, 18:37
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DS Geometery.JPG [ 15.28 KiB | Viewed 970 times ]

Kudos [?]: 135 [0], given: 7

Senior Manager
Joined: 09 Oct 2007
Posts: 463

Kudos [?]: 54 [1], given: 1

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21 Sep 2008, 19:15
1
KUDOS

1) Slope is negative, this means that the line 'travels' downward from left to right. It will always pass through quadrant 2 and 4.

2) Insufficient. Line may or may not pass through quadrant 2 because you do not know the slope.

Kudos [?]: 54 [1], given: 1

SVP
Joined: 17 Jun 2008
Posts: 1534

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22 Sep 2008, 01:19
D for me.

1 clearly says that the line will not intersect quad II.

2 says that y intercept is -ve.....that means this line will never intersect quad II.

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Director
Joined: 23 May 2008
Posts: 801

Kudos [?]: 83 [0], given: 0

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22 Sep 2008, 01:58
C

1) gives slope but no points to draw a line
2) gives y intercept and only one point (need 2 points to make a line)

1 and 2 together you can plug in numbers to get a second point

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Senior Manager
Joined: 09 Oct 2007
Posts: 463

Kudos [?]: 54 [1], given: 1

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22 Sep 2008, 07:14
1
KUDOS
asdert wrote:

1) Slope is negative, this means that the line 'travels' downward from left to right. It will always pass through quadrant 2 and 4.

2) Insufficient. Line may or may not pass through quadrant 2 because you do not know the slope.

Here's a graphic that supports my answer (A):
Attachments

slope.jpg [ 29.18 KiB | Viewed 911 times ]

Kudos [?]: 54 [1], given: 1

SVP
Joined: 17 Jun 2008
Posts: 1534

Kudos [?]: 279 [0], given: 0

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22 Sep 2008, 10:46
asdert wrote:
asdert wrote:

1) Slope is negative, this means that the line 'travels' downward from left to right. It will always pass through quadrant 2 and 4.

2) Insufficient. Line may or may not pass through quadrant 2 because you do not know the slope.

Here's a graphic that supports my answer (A):

I am confused now. What is the meaning of "intersect quadrant II"? Does it not mean that the line must have x -axis and y-axis intercepts in quadrant II?

Kudos [?]: 279 [0], given: 0

Director
Joined: 20 Sep 2006
Posts: 653

Kudos [?]: 135 [0], given: 7

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22 Sep 2008, 14:34
asdert wrote:

1) Slope is negative, this means that the line 'travels' downward from left to right. It will always pass through quadrant 2 and 4.

2) Insufficient. Line may or may not pass through quadrant 2 because you do not know the slope.

Thanks ... OA is A.

Thanks for clarifying ..... [+1]

Kudos [?]: 135 [0], given: 7

Director
Joined: 20 Sep 2006
Posts: 653

Kudos [?]: 135 [0], given: 7

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22 Sep 2008, 14:38
scthakur wrote:
asdert wrote:
asdert wrote:

1) Slope is negative, this means that the line 'travels' downward from left to right. It will always pass through quadrant 2 and 4.

2) Insufficient. Line may or may not pass through quadrant 2 because you do not know the slope.

Here's a graphic that supports my answer (A):

I am confused now. What is the meaning of "intersect quadrant II"? Does it not mean that the line must have x -axis and y-axis intercepts in quadrant II?

Means... does the line pass thru II quardant. And as shown by asdert ... every line with -ve slope must pas thru 2nd and 4th quardant. It may or may not pass thru eith Ist or III rd quardant.

Kudos [?]: 135 [0], given: 7

Re: DS Geometery   [#permalink] 22 Sep 2008, 14:38
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