 It is currently 24 Mar 2019, 23:55 ### 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

#### Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here. # For the line with equation y = ax + b,  Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:
Intern Joined: 22 Aug 2016
Posts: 32
Followers: 0

Kudos [?]: 9 , given: 5

For the line with equation y = ax + b, [#permalink] 00:00

Question Stats: 57% (01:47) correct 42% (01:14) wrong based on 28 sessions
For the line with equation y = ax + b, while ab is not equal to 0, the x-intercept is twice the y intercept.

 Quantity A Quantity B The slope of the line $$\frac{1}{2}$$

A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.

Is the answer B?
[Reveal] Spoiler: OA

Last edited by Carcass on 25 Mar 2017, 08:20, edited 1 time in total.
Edited the question Intern Joined: 23 Mar 2017
Posts: 9
Followers: 0

Kudos [?]: 13  , given: 1

Re: For the line with equation y = ax + b, [#permalink]
3
KUDOS
HarveyKlaus wrote:
For the line with equation y = ax + b, while ab is not equal to 0,
the x-intercept is twice the y intercept.

1) The slope of the line
2) 1/2

Is the answer B?

Hi

The Slope Intercept equation is Y=MX+C

Now y=ax+b
y intercept =b(x=0)
x intercept =-b/a(y=0)

As per the original condition => -b/a=2b
Hence a=-1/2

So the equation of the line becomes => y=-x/2 + b
Thus the slope of the line is -1/2

Hence the OA should be B.

**My first attempt at any GRE question**
Moderator  Joined: 18 Apr 2015
Posts: 5898
Followers: 96

Kudos [?]: 1156 , given: 5481

Re: For the line with equation y = ax + b, [#permalink]
Expert's post
Please post the question in the right format. Thnk you for your collaboration.

Regards
_________________ Intern Joined: 19 Oct 2017
Posts: 7
Followers: 0

Kudos [?]: 10  , given: 0

Re: For the line with equation y = ax + b, [#permalink]
1
KUDOS
Just an observation, to increase the speed for such questions, we can quickly check since the y intercept is greater than x intercept, the slope has to be negative, hence B is the answer.
Intern Joined: 05 Jan 2018
Posts: 32
Followers: 0

Kudos [?]: 16 , given: 8

Re: For the line with equation y = ax + b, [#permalink]
Ans..B
Director Joined: 09 Nov 2018
Posts: 509
Followers: 0

Kudos [?]: 21 , given: 1

Re: For the line with equation y = ax + b, [#permalink]
How do we know slope is positive not negative here?
Director Joined: 09 Nov 2018
Posts: 509
Followers: 0

Kudos [?]: 21 , given: 1

Re: For the line with equation y = ax + b, [#permalink]
Deeps wrote:
Just an observation, to increase the speed for such questions, we can quickly check since the y intercept is greater than x intercept, the slope has to be negative, hence B is the answer. Director Joined: 20 Apr 2016
Posts: 826
WE: Engineering (Energy and Utilities)
Followers: 11

Kudos [?]: 603  , given: 124

Re: For the line with equation y = ax + b, [#permalink]
1
KUDOS
AE wrote:
Deeps wrote:
Just an observation, to increase the speed for such questions, we can quickly check since the y intercept is greater than x intercept, the slope has to be negative, hence B is the answer.

You can use this formula to find a slope in Intercept form =$$- \frac{{Y intercept}}{{X Intercept}}$$
_________________

If you found this post useful, please let me know by pressing the Kudos Button

Rules for Posting https://greprepclub.com/forum/rules-for ... -1083.html Re: For the line with equation y = ax + b,   [#permalink] 20 Jan 2019, 06:08
Display posts from previous: Sort by

# For the line with equation y = ax + b,  Question banks Downloads My Bookmarks Reviews Important topics Powered by phpBB © phpBB Group Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.