Last visit was: 12 Dec 2024, 04:55 It is currently 12 Dec 2024, 04:55
Home
GMAT
Messages
Tests
Schools
Reviews
Social
Chat
My Profile
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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
User avatar
tzec76
User avatar
Joined: 29 Apr 2003
Last visit: 11 Mar 2006
Posts: 79
Own Kudos:
14
Location: Singapore
Posts: 79
Kudos: 14
Slope of the line - Qn2 31 Aug 2003, 00:43
Kudos
Add Kudos
Bookmarks
Bookmark this Post
The attached looks simple.

Please try to explain your answer.



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
User avatar
javropu
User avatar
Joined: 14 Aug 2003
Last visit: 20 Jul 2004
Posts: 56
Own Kudos:
2
Location: barcelona
Posts: 56
Kudos: 2
Slope of the line - Qn2 31 Aug 2003, 02:28
Kudos
Add Kudos
Bookmarks
Bookmark this Post
if by "twice" it is meant "*2" (and not "*-2"), then the slope of the line would be negative, so 1/2 is greater than a negative number
User avatar
tzec76
User avatar
Joined: 29 Apr 2003
Last visit: 11 Mar 2006
Posts: 79
Own Kudos:
14
Location: Singapore
Posts: 79
Kudos: 14
Slope of the line - Qn2 31 Aug 2003, 03:58
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Can you just elaborate why the slope is negative when X x 2?

Thanks.
User avatar
javropu
User avatar
Joined: 14 Aug 2003
Last visit: 20 Jul 2004
Posts: 56
Own Kudos:
2
Location: barcelona
Posts: 56
Kudos: 2
Slope of the line - Qn2 31 Aug 2003, 04:44
Kudos
Add Kudos
Bookmarks
Bookmark this Post
the line y=ax+b will cut the y-axis when x=0 => y=b (point (0, b))
the line y=ax+b will cut the x-axis when y=0 => x=-b/a (point (-b/a, 0))

if 2*b=-b/a, then a is negative... (in fact a=-1/2)
User avatar
tzec76
User avatar
Joined: 29 Apr 2003
Last visit: 11 Mar 2006
Posts: 79
Own Kudos:
14
Location: Singapore
Posts: 79
Kudos: 14
Slope of the line - Qn2 31 Aug 2003, 08:24
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Thanks for the explanation.

Can I confirm that the X-intercept is [-b/a,0], and Y-intecept is [0,b]?
If that is the case, is the answer of a = -2 [2 x -b/a = b]?



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
Moderator:
yashikaaggarwal
Senior Moderator - Masters Forum
3116 posts