Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Nov 1811:00 AM PST
-12:00 PM PST
Join us in a live GMAT practice session and solve 30 challenging GMAT questions with other test takers in timed conditions, covering GMAT Quant, Data Sufficiency, Data Insights, Reading Comprehension, and Critical Reasoning questions.
Nov 2211:00 AM IST
-01:00 PM IST
Do RC/MSR passages scare you? e-GMAT is conducting a masterclass to help you learn – Learn effective reading strategies Tackle difficult RC & MSR with confidence Excel in timed test environment- Nov 23
11:00 AM IST
-01:00 PM IST
Attend this free GMAT Algebra Webinar and learn how to master the most challenging Inequalities and Absolute Value problems with ease. 
Nov 2510:00 AM EST
-11:00 AM EST
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors.
08 Jun 2013, 22:19
Kudos
Bookmarks
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
55% (01:42) correct
45%
(01:38)
wrong
based on 95
sessions
History
Date
Time
Result
Not Attempted Yet
What is the X intercept of non horizontal line m?
(1) The slope of m is 4 times the y intercept of m
(2) The y intercept of line m is -2.
I would like to see the graphical approach for Statement 1. I'm able to find the answer using algebraic approach, however graphical approach is giving me an incorrect answer.
Your help will be appreciated.
Thanks
imhimanshu
(1) The slope of m is 4 times the y intercept of m
(2) The y intercept of line m is -2.
I would like to see the graphical approach for Statement 1. I'm able to find the answer using algebraic approach, however graphical approach is giving me an incorrect answer.
Your help will be appreciated.
Thanks
imhimanshu
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 Data Sufficiency (DS) 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!
08 Jun 2013, 22:33
Kudos
Bookmarks
What is the X intercept of non horizontal line m?
\(y=mx+q\)
1) The slope of m is 4 times the y intercept of m
\(m=4q\)
\(y=4qx+q\),or \(y=q(4x+1)\) the X intercept of that line is \(-\frac{1}{4}\) as y=q(4x+1)=0 (because q cannot be zero) gives us 4x+1=0.
2) The y intercept of line m is -2.
\(y=mx-2\).
Not sufficient
Take a look at the image, there are three lines y=4x+1, y=8x+2 and y=-4x-1.
Hope it clarifies
\(y=mx+q\)
1) The slope of m is 4 times the y intercept of m
\(m=4q\)
\(y=4qx+q\),or \(y=q(4x+1)\) the X intercept of that line is \(-\frac{1}{4}\) as y=q(4x+1)=0 (because q cannot be zero) gives us 4x+1=0.
2) The y intercept of line m is -2.
\(y=mx-2\).
Not sufficient
Take a look at the image, there are three lines y=4x+1, y=8x+2 and y=-4x-1.
Hope it clarifies
Attachments
Untitled.png [ 8.72 KiB | Viewed 3314 times ]
kpali
Joined: 22 May 2013
Last visit: 20 Dec 2014
Posts: 35
Given Kudos: 10
Concentration: General Management, Technology
Schools: Tippie '16 Sloan '16 Tepper '16 Duke '16
GPA: 3.9
WE:Information Technology (Computer Software)
09 Jun 2013, 00:39
Kudos
Bookmarks
imhimanshu
Algebraic Approach:
We know that the line is not horizontal, Hence is has a a X and a Y intercept.
Case 1) Considering the line in the form: Y=PX+C, P being the slope and C being the constant which is also the Y Intercept.
slope of m is 4 times the y intercept of m, Hence,
P=4C
Y=4CX+C
To find the X intercept, Substituting Y=0
X=-1/4
Sufficient.
Case 2)Y Intercept of line = -2
Hence, in the line Y=PX+C, C = -2
Substituting
Y=PX-2
To find the X intercept, substituting Y=0
X=2/P
P is still u known.
Hence, Insufficient.
Since, Case 1 is sufficient, A is the answer.
