It is currently 21 Oct 2017, 01:59

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# slope

Author Message
Manager
Joined: 04 Sep 2006
Posts: 113

Kudos [?]: 62 [0], given: 0

### Show Tags

31 May 2009, 10:10
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Line X's slope>0, Line Y's slope<0. Line Y's intersection with axis-y is less than that of X. If X's intersection with axis-x is 2, which of the following could be the Y's intersection with axis-x?
I.-1
II.0
III.1

Kudos [?]: 62 [0], given: 0

Manager
Affiliations: Beta Gamma Sigma
Joined: 14 Aug 2008
Posts: 209

Kudos [?]: 74 [0], given: 3

Schools: Harvard, Penn, Maryland

### Show Tags

31 May 2009, 10:23
only I could be true.

If Line X's slope is positive, and its x-intercept is 2, then its y-intercept must be negative.

If Line Y's slope is negative, and its y intercept is negative (as it is less than Line X's), then its x-intercept must also be negative.
(y=mx+b, if b and m are negative, then x must be negative for y=0, or x intercept)

Therefore, only I can be true, the others are not possible.

Kudos [?]: 74 [0], given: 3

Senior Manager
Joined: 16 Jan 2009
Posts: 354

Kudos [?]: 232 [0], given: 16

Concentration: Technology, Marketing
GMAT 1: 700 Q50 V34
GPA: 3
WE: Sales (Telecommunications)

### Show Tags

31 May 2009, 15:21
dk94588 wrote:
only I could be true.

If Line X's slope is positive, and its x-intercept is 2, then its y-intercept must be negative.

If Line Y's slope is negative, and its y intercept is negative (as it is less than Line X's), then its x-intercept must also be negative.
(y=mx+b, if b and m are negative, then x must be negative for y=0, or x intercept)

Therefore, only I can be true, the others are not possible.

If Line X's slope is positive, and its x-intercept is 2, then its y-intercept must be positive.
I think you missed something here.

I think all 3 values are possible.
Please have a look at the diag.
Blue represents Y's x intercept and Black (bold) represents X's x intercept.
Attachments

Untitled.jpg [ 6.19 KiB | Viewed 1206 times ]

_________________

Lahoosaher

Kudos [?]: 232 [0], given: 16

Manager
Affiliations: Beta Gamma Sigma
Joined: 14 Aug 2008
Posts: 209

Kudos [?]: 74 [0], given: 3

Schools: Harvard, Penn, Maryland

### Show Tags

31 May 2009, 19:24
the x intercept in your graph is negative, the x axis goes -2 -1 0 1 2

the y intercept is where x=0, and the x intercept is where y=0,

if Line X's slope is positive, then its slope reversed would be negative. If y=0 at x=2, then y<0 at x<2, because y would have to decrease as x decreases.

in short, the x-intercept in your graph is on the wrong side of the y-axis.

Kudos [?]: 74 [0], given: 3

Intern
Joined: 12 May 2009
Posts: 46

Kudos [?]: 3 [0], given: 1

Location: Mumbai

### Show Tags

31 May 2009, 22:16
Since the slope of Line X is + ve, its intercept will be +ve and for Line Y the intercept will be negative.
In our case X = 2, so Y will have a -ve intercept, and only -1 is +ve.

IMO A

Kudos [?]: 3 [0], given: 1

Re: slope   [#permalink] 31 May 2009, 22:16
Display posts from previous: Sort by