Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 05 May 2015, 08:04

### 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

# Does the line pass through Ist quadrant? 1) The intercept

Author Message
TAGS:
Senior Manager
Joined: 08 Aug 2005
Posts: 251
Followers: 1

Kudos [?]: 17 [0], given: 0

Does the line pass through Ist quadrant? 1) The intercept [#permalink]  27 Apr 2006, 22:45
Does the line pass through Ist quadrant?

1) The intercept with x axis is -1.
2) The slope is greater than 1.
Manager
Joined: 20 Mar 2005
Posts: 201
Location: Colombia, South America
Followers: 1

Kudos [?]: 6 [0], given: 0

getzgetzu wrote:
Does the line pass through Ist quadrant?

1) The intercept with x axis is -1.
2) The slope is greater than 1.

I think must be B, if slope is greater than one it should pass by the first quadrant sometime no matter what
VP
Joined: 06 Jun 2004
Posts: 1059
Location: CA
Followers: 2

Kudos [?]: 47 [0], given: 0

getzgetzu wrote:
Does the line pass through Ist quadrant?

1) The intercept with x axis is -1.
2) The slope is greater than 1.

Agree with B

(1) the line could be a straight line with an equation of x = -1
(2) Yes, always goes through Quad 1
_________________

Don't be afraid to take a flying leap of faith.. If you risk nothing, than you gain nothing...

VP
Joined: 21 Sep 2003
Posts: 1066
Location: USA
Followers: 3

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

TeHCM wrote:
Agree with B

(1) the line could be a straight line with an equation of x = -1
(2) Yes, always goes through Quad 1

TeHCM,
Your argument for #1 can be applied to #2 too. In which case the slope of line is infinity (> 1) and intercept is -1 too
_________________

"To dream anything that you want to dream, that is the beauty of the human mind. To do anything that you want to do, that is the strength of the human will. To trust yourself, to test your limits, that is the courage to succeed."

- Bernard Edmonds

VP
Joined: 06 Jun 2004
Posts: 1059
Location: CA
Followers: 2

Kudos [?]: 47 [0], given: 0

giddi77 wrote:
TeHCM wrote:
Agree with B

(1) the line could be a straight line with an equation of x = -1
(2) Yes, always goes through Quad 1

TeHCM,
Your argument for #1 can be applied to #2 too. In which case the slope of line is infinity (> 1) and intercept is -1 too

I'm still a bit rusty after all the rest. LOL. Could you elaborate?
_________________

Don't be afraid to take a flying leap of faith.. If you risk nothing, than you gain nothing...

VP
Joined: 29 Apr 2003
Posts: 1405
Followers: 2

Kudos [?]: 18 [0], given: 0

Agreed with B.

For (1) if the line is || to the Y axis (x=-1) then it does not, but for some it does!
VP
Joined: 21 Sep 2003
Posts: 1066
Location: USA
Followers: 3

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

TeHCM wrote:
giddi77 wrote:
TeHCM wrote:
Agree with B

(1) the line could be a straight line with an equation of x = -1
(2) Yes, always goes through Quad 1

TeHCM,
Your argument for #1 can be applied to #2 too. In which case the slope of line is infinity (> 1) and intercept is -1 too

I'm still a bit rusty after all the rest. LOL. Could you elaborate?

Now the line x = -1 (line that parallel to y-axis and passes through (-1,0)), satisfies both condition it's slope is infinity, which is defenitely > 1. Also it has x-intercept of -1. But it doesn't pass through 1st Quadrant.
Hence it should be E.
_________________

"To dream anything that you want to dream, that is the beauty of the human mind. To do anything that you want to do, that is the strength of the human will. To trust yourself, to test your limits, that is the courage to succeed."

- Bernard Edmonds

VP
Joined: 06 Jun 2004
Posts: 1059
Location: CA
Followers: 2

Kudos [?]: 47 [0], given: 0

giddi77 wrote:
TeHCM wrote:
giddi77 wrote:
TeHCM wrote:
Agree with B

(1) the line could be a straight line with an equation of x = -1
(2) Yes, always goes through Quad 1

TeHCM,
Your argument for #1 can be applied to #2 too. In which case the slope of line is infinity (> 1) and intercept is -1 too

I'm still a bit rusty after all the rest. LOL. Could you elaborate?

Now the line x = -1 (line that parallel to y-axis and passes through (-1,0)), satisfies both condition it's slope is infinity, which is defenitely > 1. Also it has x-intercept of -1. But it doesn't pass through 1st Quadrant.
Hence it should be E.

If line x = -1, shouldn't the slope = 0?
_________________

Don't be afraid to take a flying leap of faith.. If you risk nothing, than you gain nothing...

VP
Joined: 21 Sep 2003
Posts: 1066
Location: USA
Followers: 3

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

TeHCM wrote:
If line x = -1, shouldn't the slope = 0?

OK take 2 points (-1,0) & (-1,10) on the line x = -1
Now slope = (y2-y1)/(x2-x1) = 10-0/(-1-(-1)) = 10/0 = infinity!

A line parallel to x-axis has 0 slope.
A line parallel to y-axis has infinite slope

Googled and found this link. It has a java applet for visualization of lines & slopes
http://www.uncwil.edu/courses/mat111hb/functions/lines/lines.html
_________________

"To dream anything that you want to dream, that is the beauty of the human mind. To do anything that you want to do, that is the strength of the human will. To trust yourself, to test your limits, that is the courage to succeed."

- Bernard Edmonds

VP
Joined: 06 Jun 2004
Posts: 1059
Location: CA
Followers: 2

Kudos [?]: 47 [0], given: 0

giddi77 wrote:
A line parallel to x-axis has 0 slope.
A line parallel to y-axis has infinite slope

I vaguely recall this in high school

I will look into this, thanks!

p.s. you should go to sleep now!
_________________

Don't be afraid to take a flying leap of faith.. If you risk nothing, than you gain nothing...

Senior Manager
Joined: 09 Aug 2005
Posts: 286
Followers: 1

Kudos [?]: 2 [0], given: 0

[quote="getzgetzu"]Does the line pass through Ist quadrant?

1) The intercept with x axis is -1.
2) The slope is greater than 1.[/quote]

E I think too. OA please
Senior Manager
Joined: 05 Jan 2006
Posts: 383
Followers: 1

Kudos [?]: 30 [0], given: 0

somehow I tend to consider positive, negative, zero and inf four different slopes... and particularly I consider slope of inf is not defined!

in this case I would say B is sufficient, because, any positive slope line is bound to pass through quadrant (I and III) and negative slope will pass through quadrant(II, and IV)

more over any line with positive or negative slope passes through three quadrant!
Senior Manager
Joined: 05 Jan 2006
Posts: 383
Followers: 1

Kudos [?]: 30 [0], given: 0

Ok to clarify my previous stand about slope let me quote bible (OG-11, page 138)

" For vertical line, slope is not defined......"

And if you remember numbers properties 0 is neither positive nor negative itâ€™s just "even evil"

I hope this helpsâ€¦
VP
Joined: 21 Sep 2003
Posts: 1066
Location: USA
Followers: 3

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

chiragr wrote:
Ok to clarify my previous stand about slope let me quote bible (OG-11, page 138)

" For vertical line, slope is not defined......"

And if you remember numbers properties 0 is neither positive nor negative itâ€™s just "even evil"

I hope this helpsâ€¦

Hmm.. If OG mentions "slope is not defined" for a vertical line, I would have to take that. In that case B is sufficient.
_________________

"To dream anything that you want to dream, that is the beauty of the human mind. To do anything that you want to do, that is the strength of the human will. To trust yourself, to test your limits, that is the courage to succeed."

- Bernard Edmonds

VP
Joined: 06 Jun 2004
Posts: 1059
Location: CA
Followers: 2

Kudos [?]: 47 [0], given: 0

getzgetzu, what is the OA?
_________________

Don't be afraid to take a flying leap of faith.. If you risk nothing, than you gain nothing...

Manager
Joined: 23 Mar 2006
Posts: 76
Followers: 1

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

Interesting exchange of mails. Will go with B post chiragr's clarification.
VP
Joined: 29 Apr 2003
Posts: 1405
Followers: 2

Kudos [?]: 18 [0], given: 0

Okay.. I agree with a line x=c has a slope of infinity, which is greater than 1!

Hence, I change my case and vote for E...

Whats the OA?
Manager
Joined: 13 Aug 2005
Posts: 136
Followers: 1

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

Agree with E. What is OA?
Similar topics Replies Last post
Similar
Topics:
8 The line 3x + 4y = 8 passes through all of the quadrants in 4 09 Oct 2012, 11:28
Does the line pass through the first quadrant? I. the line 5 10 Jan 2008, 10:27
The slope of a line that passes through origin and S is 1/2, 3 26 Apr 2006, 02:30
Does the line pass through the first quadrant? I. the line 8 24 Mar 2006, 19:47
A straight line passes through (1,p). Does it have a 15 23 Nov 2005, 22:24
Display posts from previous: Sort by