|
Author |
Message |
|
TAGS:
|
|
|
GMAT Club team member
Joined: 02 Sep 2009
Posts: 12116
Followers: 1879
Kudos [?]:
10130
[0], given: 965
|
In the equation above, k is a constant. If y = 17 when x = 2 [#permalink]
 01 Oct 2012, 05:07
Question Stats:
100% (01:24) correct
0% (00:00) wrong based on 37 sessions
The Official Guide for GMAT® Review, 13th Edition - Quantitative Questions Projecty = kx + 3In the equation above, k is a constant. If y = 17 when x = 2, what is the value of y when x = 4 ? (A) 34 (B) 31 (C) 14 (D) 11 (E) 7 Practice Questions
Question: 54
Page: 159
Difficulty: 600 GMAT Club is introducing a new project: The Official Guide for GMAT® Review, 13th Edition - Quantitative Questions ProjectEach week we'll be posting several questions from The Official Guide for GMAT® Review, 13th Edition and then after couple of days we'll provide Official Answer (OA) to them along with a slution. We'll be glad if you participate in development of this project: 1. Please provide your solutions to the questions; 2. Please vote for the best solutions by pressing Kudos button; 3. Please vote for the questions themselves by pressing Kudos button; 4. Please share your views on difficulty level of the questions, so that we have most precise evaluation. Thank you! _________________
NEW TO MATH FORUM? PLEASE READ THIS: ALL YOU NEED FOR QUANT!!!
PLEASE READ AND FOLLOW: 11 Rules for Posting!!!
RESOURCES: [GMAT MATH BOOK]; 1. Triangles; 2. Polygons; 3. Coordinate Geometry; 4. Factorials; 5. Circles; 6. Number Theory; 7. Remainders; 8. Overlapping Sets; 9. PDF of Math Book; 10. Remainders
COLLECTION OF QUESTIONS:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. NEW!!! ,11 Mixed Questions NEW!!!, 12 Fresh Meat NEW!!!
DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS ; 9 Devil's Dozen!!!; 10 Number Properties set. NEW!!!, 11 New DS set. NEW!!!
What are GMAT Club Tests?
25 extra-hard Quant Tests
Find out what's new at GMAT Club - latest features and updates
|
|
|
|
|
|
|
|
|
GMAT Club team member
Joined: 02 Sep 2009
Posts: 12116
Followers: 1879
Kudos [?]:
10130
[0], given: 965
|
Re: In the equation above, k is a constant. If y = 17 when x = 2 [#permalink]
01 Oct 2012, 05:08
|
|
|
|
|
|
SVP
Joined: 01 Sep 2010
Posts: 1797
Followers: 64
Kudos [?]:
653
[1] , given: 478
|
Re: In the equation above, k is a constant. If y = 17 when x = 2 [#permalink]
01 Oct 2012, 05:17
1
This post received
KUDOS
y = kx + 3 is the equation of the slope but in this context the question is different y = K * 2 + 3to have y = 17 then K must be 7 17 = 7*2 + 3y = 7*4 + 3 ---> y = 31B must be the answer. Sub 600 Thanks
_________________
KUDOS is the good manner to help the entire community.
|
|
|
|
|
|
Senior Manager
Joined: 24 Aug 2009
Posts: 312
Schools: Harvard, Columbia, Stern, Booth, LSB,
Followers: 2
Kudos [?]:
159
[0], given: 229
|
Re: In the equation above, k is a constant. If y = 17 when x = 2 [#permalink]
01 Oct 2012, 19:53
Answer is B. Same explanation as Carcass's
_________________
If you like my Question/Explanation or the contribution, Kindly appreciate by pressing KUDOS.
Kudos always maximizes GMATCLUB worth -Game Theory
|
|
|
|
|
|
Intern
Joined: 30 Aug 2011
Posts: 22
Location: United States
Concentration: General Management, International Business
GMAT 1: 680 Q46 V37
WE: Project Management (Computer Software)
Followers: 0
Kudos [?]:
13
[0], given: 17
|
Re: In the equation above, k is a constant. If y = 17 when x = 2 [#permalink]
04 Oct 2012, 00:43
Answer is B (=31)
Explanation is same as provided by Carcass above.
|
|
|
|
|
|
Manager
Joined: 26 Jul 2011
Posts: 122
Location: India
WE: Marketing (Manufacturing)
Followers: 1
Kudos [?]:
15
[1] , given: 15
|
Re: In the equation above, k is a constant. If y = 17 when x = 2 [#permalink]
04 Oct 2012, 02:47
1
This post received
KUDOS
1) Put y =17 and x=2 and solve for K
2) Knowing k=7 from above and x=4 solve for Y ------> Y=31
Answer is B
|
|
|
|
|
|
GMAT Club team member
Joined: 02 Sep 2009
Posts: 12116
Followers: 1879
Kudos [?]:
10130
[0], given: 965
|
Re: In the equation above, k is a constant. If y = 17 when x = 2 [#permalink]
04 Oct 2012, 14:14
|
|
|
|
|
|
Manager
Joined: 25 Jun 2012
Posts: 72
Location: India
WE: General Management (Energy and Utilities)
Followers: 1
Kudos [?]:
21
[0], given: 15
|
Re: In the equation above, k is a constant. If y = 17 when x = 2 [#permalink]
05 Oct 2012, 03:23
1 st step : solve given eqn for K by putting values of x and y. u get k=7
snd step : now put banck value of k=7 and x=4 in given eqn and solve for y.
you get y=31
so Y=31 answer
|
|
|
|
|
|
Senior Manager
Joined: 13 Aug 2012
Posts: 468
Followers: 13
Kudos [?]:
88
[0], given: 11
|
Re: In the equation above, k is a constant. If y = 17 when x = 2 [#permalink]
10 Dec 2012, 04:47
y = kx + 3
17 = k(2) + 3 --> 14 = 2k --> k=7
y = (7)(4) + 3 --> y = 31
Answer: B
|
|
|
|
|
|
|
Re: In the equation above, k is a constant. If y = 17 when x = 2
[#permalink]
10 Dec 2012, 04:47
|
|
|
|
|
|
|
|
|
Similar topics |
Author |
Replies |
Last post |
|
Similar
Topics:
|
 |
|
|
If k is a positive constant and y = |x - k| - |x + k|, what
|
BG |
9 |
23 May 2006, 02:34 |
|
|
|
|
x-y = 3 2x= 2y+6 The system of equations above has how many
|
yogachgolf |
6 |
15 Nov 2007, 14:21 |
|
|
1
|
 |
On the graph above, when x = 1/2, y = 2; and when x = 1, y =
|
Bunuel |
4 |
30 Jul 2012, 01:53 |
|
|
3
|
|
The equation x = 2y^2 + 5y - 17, describes a parabola in the
|
sanjoo |
6 |
17 Oct 2012, 12:18 |
|
|
1
|
|
In the equation y2 + ay - 24 = 0, a is a constant and y is a
|
fozzzy |
1 |
01 Jun 2013, 03:28 |
|
|
|
|
|
|
close
