It is currently 26 May 2019, 19:00

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

The distance from (b,2) to (-2,2)

Author Message
TAGS:
Manager
Joined: 12 Jan 2016
Posts: 143
Followers: 1

Kudos [?]: 73 [0], given: 17

The distance from (b,2) to (-2,2) [#permalink]  29 Aug 2016, 23:46
00:00

Question Stats:

43% (00:37) correct 56% (00:41) wrong based on 41 sessions
The distance from (b,2) to (-2,2) is 3

 Quantity A Quantity B b 0

A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA
GRE Prep Club Legend
Joined: 07 Jun 2014
Posts: 4857
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 112

Kudos [?]: 1865 [1] , given: 397

Re: The distance from (b,2) to (-2,2) [#permalink]  30 Aug 2016, 00:21
1
KUDOS
Expert's post
There are two values of b which satisfies the above expression.

b = -5 and b=1.

Hence D is the right option.
_________________

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

Try our free Online GRE Test

Intern
Joined: 12 Jul 2017
Posts: 9
Followers: 0

Kudos [?]: 4 [0], given: 2

Re: The distance from (b,2) to (-2,2) [#permalink]  25 Jul 2017, 11:28
I am lost in this one. I plug in the values of the points into the distance equation √(x1 - x2)² + (y1 - y2)2. And I obtained b = -1 and b=-7. What I did wrong. Thanks for the help.
GRE Instructor
Joined: 10 Apr 2015
Posts: 1802
Followers: 58

Kudos [?]: 1686 [1] , given: 8

Re: The distance from (b,2) to (-2,2) [#permalink]  25 Jul 2017, 15:29
1
KUDOS
Expert's post
TUTTIAM52 wrote:
I am lost in this one. I plug in the values of the points into the distance equation √(x1 - x2)² + (y1 - y2)2. And I obtained b = -1 and b=-7. What I did wrong. Thanks for the help.

Can you show us your calculations?

That said, the distance formula isn't really necessary here, since the two given points have the same y-coordinate.

Cheers,
Brent
_________________

Brent Hanneson – Creator of greenlighttestprep.com

Intern
Joined: 18 Sep 2018
Posts: 38
Followers: 0

Kudos [?]: 7 [0], given: 1

Re: The distance from (b,2) to (-2,2) [#permalink]  05 Oct 2018, 23:16
I used the formula to try to calculate the distance and it did not work. I was trying to use the formula to practice with.

I used the formula SQUARE ROOT OF [(x1-x2)² + (y1-y2)²]

(x1,y1) = (b,2)

(x1,y1) = (-2,2)

I got

3 = SQUARE ROOT OF (b+2)²
0 = b² + 4b + 4 -3
0 = b² + 4b + 1

And I got stuck here.

I couldn't solve for b because it wouldn't solve. I was trying to do something like 0 = (b + ?)(b + ?), but nothing would fit it to get the coordinates that are the answer.

I'm not sure what I'm doing wrong?
Intern
Joined: 20 Sep 2018
Posts: 15
Followers: 0

Kudos [?]: 1 [0], given: 0

Re: The distance from (b,2) to (-2,2) [#permalink]  14 Oct 2018, 04:45
I did not understand how b=-5..Plz help
Supreme Moderator
Joined: 01 Nov 2017
Posts: 370
Followers: 5

Kudos [?]: 111 [1] , given: 4

Re: The distance from (b,2) to (-2,2) [#permalink]  14 Oct 2018, 07:20
1
KUDOS
Expert's post
Sonalika42 wrote:
The distance from (b,2) to (-2,2) is 3

 Quantity A Quantity B b 0

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

hi Reetika,
the points (b,2) and (-2,2) should tell you that these are coordinates as shown
Also since y- coordinates are 2 in both cases, the points are in a straight line parallel to x axis.

Now distance between the two points is 3 and this will totally depend on x coordinates..
so |b-(-2)|=3

two case..
|b+2|=3.....b+2=3.....b=1, so Column A>column B
|b+2|=3.....b+2=-3.....b=-5, so Column A<column B

D
_________________

Some useful Theory.
1. Arithmetic and Geometric progressions : https://greprepclub.com/forum/progressions-arithmetic-geometric-and-harmonic-11574.html#p27048
2. Effect of Arithmetic Operations on fraction : https://greprepclub.com/forum/effects-of-arithmetic-operations-on-fractions-11573.html?sid=d570445335a783891cd4d48a17db9825
3. Remainders : https://greprepclub.com/forum/remainders-what-you-should-know-11524.html
4. Number properties : https://greprepclub.com/forum/number-property-all-you-require-11518.html
5. Absolute Modulus and Inequalities : https://greprepclub.com/forum/absolute-modulus-a-better-understanding-11281.html

Manager
Joined: 23 Oct 2018
Posts: 57
Followers: 0

Kudos [?]: 0 [0], given: 0

Re: The distance from (b,2) to (-2,2) [#permalink]  27 Nov 2018, 21:41
thank you
Re: The distance from (b,2) to (-2,2)   [#permalink] 27 Nov 2018, 21:41
Display posts from previous: Sort by