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.
Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
Are you struggling with the GMAT verbal section? Do tricky questions and lengthy passages overwhelm you? Don't worry—I've got you covered! In this video, I'll provide a detailed, actionable plan to help you significantly boost your verbal score.
More and more TTP students are earning impressive scores on the GMAT. Now is the perfect time to join the many GMAT students who made the switch to TTP and surpassed their wildest expectations on test day.
We will learn how to guess an answer choice better on the GMAT. If you are running out of time and want to guess on a few questions, these effective techniques will help you in making a smart guess.
MBA Application Walkthrough and Essay Review. You will have a chance to hear from experts covering the Top 15 MBA programs, covering details of the application and essays.
Save 20% on Target Test Prep and Score in the 100th Percentile in GMAT Verbal! Our course uses techniques such as topical study and spaced repetition to maximize knowledge retention and make studying simple and fun.
Re: In the xy-plane is the slope of line k equal to 0?
[#permalink]
21 Jan 2013, 05:04
9
Kudos
13
Bookmarks
Expert Reply
fozzzy wrote:
Don't you think this question has ambiguity, the official explanation didn't really make sense.
Definitely. Is this question really from GMAT Prep? If so, can you pleas provide OA given there? Thank you.
In the xy-plane is the slope of line k equal to 0?
The questions basically asks whether line k is a horizontal line (the slope of any horizontal line is always zero. For more check here: math-coordinate-geometry-87652.html).
(1) The x-intercept of k is 0. Now, I'm not a verbal expert, but the x-intercept implies that there is only one point of interception with x-axis, which means that we can eliminate y=0 line. So, we have that line k is not y=0 and has x-intercept, thus it cannot be horizontal --> the slope does not equal to 0. Sufficient.
(2) The y-intercept of k is 0. Clearly insufficient.
Re: In the xy-plane is the slope of line k equal to 0?
[#permalink]
01 Apr 2014, 08:21
3
Kudos
Expert Reply
goodyear2013 wrote:
Hi, I emailed the GMAC and checked the answer of this question. I asked whether the answer could be (A).
Here is the reply of GMAC;
Answer is E. The answer explanation explains it. There are an infinite number of equations that have an x-intercept = 0 but do not have a slope equal to 0.
The answer explanation provides just one counter example: the equation y=x. Other counterexamples include y=2x, y=3x, y=1/2x, y=1/3x, etc. Because there is at least one example where the answer is yes (the slope = 0) and at least one example where the answer is no (the slope is not = 0), then statement (1) is not sufficient.
None of the examples from GMAC (y=x, y=2x, y=3x, y=1/2x, y=1/3x) has the slope of 0. They say "an x-intercept = 0", while the question says "the x-intercept of k is 0". In the current form the answer must be A, no matter what the GMAC says.
This Question is Locked Due to Poor Quality
Hi there,
The question you've reached has been archived due to not meeting our community quality standards. No more replies are possible here.
Looking for better-quality questions? Check out the 'Similar Questions' block below
for a list of similar but high-quality questions.
Want to join other relevant Problem Solving discussions? Visit our Data Sufficiency (DS) Forum
for the most recent and top-quality discussions.
Re: In the xy-plane is the slope of line k equal to 0?
[#permalink]
29 Dec 2013, 03:03
1
Kudos
Expert Reply
fozzzy wrote:
In the xy-plane is the slope of line k equal to 0?
(1) The x-intercept of k is 0. (2) The y-intercept of k is 0.
Ron Purewal ManhattanGMAT: GMAC has actually admitted that this problem is flawed. who knows how long it will take until a software release in which it is fixed, but GMAC has admitted that its use of the x-axis as a possibility doesn't square with the use of "THE x-intercept".
Re: In the xy-plane is the slope of line k equal to 0?
[#permalink]
01 Apr 2014, 07:29
Hi, I emailed the GMAC and checked the answer of this question. I asked whether the answer could be (A).
Here is the reply of GMAC;
Answer is E. The answer explanation explains it. There are an infinite number of equations that have an x-intercept = 0 but do not have a slope equal to 0.
The answer explanation provides just one counter example: the equation y=x. Other counterexamples include y=2x, y=3x, y=1/2x, y=1/3x, etc. Because there is at least one example where the answer is yes (the slope = 0) and at least one example where the answer is no (the slope is not = 0), then statement (1) is not sufficient.
gmatclubot
Re: In the xy-plane is the slope of line k equal to 0? [#permalink]