Last visit was: 25 Apr 2024, 05:52 It is currently 25 Apr 2024, 05:52

Close
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
Your Progress

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
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Close
Request Expert Reply
Confirm Cancel
SORT BY:
Date
Tags:
Show Tags
Hide Tags
Manager
Manager
Joined: 30 Jul 2013
Posts: 60
Own Kudos [?]: 48 [17]
Given Kudos: 33
Concentration: Technology, General Management
GMAT Date: 07-03-2015
GPA: 3.8
WE:Information Technology (Computer Software)
Send PM
Most Helpful Reply
Tutor
Joined: 16 Oct 2010
Posts: 14822
Own Kudos [?]: 64909 [5]
Given Kudos: 426
Location: Pune, India
Send PM
General Discussion
RC & DI Moderator
Joined: 02 Aug 2009
Status:Math and DI Expert
Posts: 11176
Own Kudos [?]: 31917 [1]
Given Kudos: 290
Send PM
GMAT Club Legend
GMAT Club Legend
Joined: 19 Dec 2014
Status:GMAT Assassin/Co-Founder
Affiliations: EMPOWERgmat
Posts: 21846
Own Kudos [?]: 11665 [1]
Given Kudos: 450
Location: United States (CA)
GMAT 1: 800 Q51 V49
GRE 1: Q170 V170
Send PM
Re: The y-intercept of line k is negative. If the slope of line k is also [#permalink]
1
Kudos
Expert Reply
Hi Pretz,

This question is all about basic line and "slope" rules. You can solve it with some drawings.

Here's what you need to know to handle it. From the prompt, we know:
1) Line K has a NEGATIVE Y-intercept. That means that the line crosses the Y-axis BENEATH the Origin.
2) Line K has a NEGATIVE slope. That means the line goes "down and to the right"

The question asks which of the 3 options could be the X-intercept, meaning "which of these points on the X-axis COULD the line potentially cross?" At this point, you can plot each point and see if you can create a line that fits all of the given information.

By doing 3 quick sketches, you'll find that the first line has a negative slope, the second line has an infinite/undefined slope (the line goes straight up) and the third line has a positive slope (it goes "up and to the right").

Final Answer:

GMAT assassins aren't born, they're made,
Rich
Senior Manager
Senior Manager
Joined: 04 Jun 2016
Posts: 484
Own Kudos [?]: 2335 [1]
Given Kudos: 36
GMAT 1: 750 Q49 V43
Send PM
Re: The y-intercept of line k is negative. If the slope of line k is also [#permalink]
Pretz wrote:
The y-intercept of line k is negative. If the slope of line k is also
negative, which of the following could be the x-intercept of line k?
I. -4
II. 0
III. 3

(A) I only
(B) II only
(C) III only
(D) I and II
(E) I and III


Answer is A
Y intercept is negative :- Line will cut Y lie below the X-axiz (x can be both + or -)
Slope is negative:- Line will come from top left to bottom right (x can again be + or -)
The only value of X that satisfy both constraint is a negative value of x ; hence A (I only) is the correct answer
Manager
Manager
Joined: 24 Dec 2016
Posts: 93
Own Kudos [?]: 45 [1]
Given Kudos: 145
Location: India
Concentration: Finance, General Management
WE:Information Technology (Computer Software)
Send PM
Re: The y-intercept of line k is negative. If the slope of line k is also [#permalink]
Hi,

Slope = - (y/x) = -ve, as per qsn statement.
As y = -ve, and the slope is negative as well, we need to have x -ve too to maintain the conditions.

Only -4 satisfies.
User avatar
Non-Human User
Joined: 09 Sep 2013
Posts: 32667
Own Kudos [?]: 821 [0]
Given Kudos: 0
Send PM
Re: The y-intercept of line k is negative. If the slope of line k is also [#permalink]
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
GMAT Club Bot
Re: The y-intercept of line k is negative. If the slope of line k is also [#permalink]
Moderators:
Math Expert
92912 posts
Senior Moderator - Masters Forum
3137 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne