GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video

It is currently 26 May 2020, 23:00

Close

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
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.

Close

Request Expert Reply

Confirm Cancel

Which of the following is NOT an equation of one of the boundary lines

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
Retired Moderator
avatar
Joined: 29 Apr 2015
Posts: 778
Location: Switzerland
Concentration: Economics, Finance
Schools: LBS MIF '19
WE: Asset Management (Investment Banking)
GMAT ToolKit User
Which of the following is NOT an equation of one of the boundary lines  [#permalink]

Show Tags

New post 12 May 2015, 10:27
2
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

83% (01:16) correct 17% (01:30) wrong based on 111 sessions

HideShow timer Statistics

Attachment:
T6224.png
T6224.png [ 9.34 KiB | Viewed 1850 times ]
Which of the following is NOT an equation of one of the boundary lines of the shaded region in the figure above?

A. x=5
B. y=0
C. y=2−2x
D. x=0
E. y=2−x
EMPOWERgmat Instructor
User avatar
V
Status: GMAT Assassin/Co-Founder
Affiliations: EMPOWERgmat
Joined: 19 Dec 2014
Posts: 16724
Location: United States (CA)
GMAT 1: 800 Q51 V49
GRE 1: Q170 V170
Re: Which of the following is NOT an equation of one of the boundary lines  [#permalink]

Show Tags

New post 12 May 2015, 21:30
Hi reto,

Looking at the answer choices, we can see that two of them are the equations for diagonal lines (Answers C and E). Since the drawing has just 1 diagonal line in it, one of these two equations IS the equation for that diagonal line while the other is NOT.

Based on the graph, we can see two obvious points on that line: (0,2) and (2,0). We can check these two points against the two equations. If either point does NOT fit the given equation, then that equation does not fit the drawing (and is the correct answer to this question).

When X = 2 is entered into Answer C, the result is 2-4 = -2; this is NOT a match (it's supposed to be 0)
When X = 2 is entered into Answer E, the result is 2-2 = 0; this IS a match.

Thus, the answer that is NOT in the drawing is....

Final Answer:

GMAT assassins aren't born, they're made,
Rich
_________________
Contact Rich at: Rich.C@empowergmat.com
Image


The Course Used By GMAT Club Moderators To Earn 750+

souvik101990 Score: 760 Q50 V42 ★★★★★
ENGRTOMBA2018 Score: 750 Q49 V44 ★★★★★
e-GMAT Representative
User avatar
V
Joined: 04 Jan 2015
Posts: 3367
Re: Which of the following is NOT an equation of one of the boundary lines  [#permalink]

Show Tags

New post 12 May 2015, 21:45
Let's write down the equations of the line segments of the boundary lines

Image


1. We know that x axis has the equation \(y = 0\).Line segments lying on x -axis would have the same equation as \(y = 0\)

2. Similarly, y-axis has its equation as \(x = 0\).Line segments lying on the y-axis would have the same equation as \(x = 0\)

3. A line segment passing through the point (5,0) and parallel to y-axis would have its equation written as \(x = 5\)

4. Similarly, a line segment passing through the point (0,5) and parallel to x-axis would have its line segment as \(y = 5\)

5. Now, we are left with just one line segment for which we know the two points it passes through. We can write the slope of the line segment as = \(\frac{(0-2)}{(2-0)} = -1\). Thus we can write the equation as \(y = -x + c\). Putting the coordinates (0,2) in the equation to find out the value of c, we get c = 2. So, equation of the line can be written as \(y = -x + 2\)

Answer is option C

Hope it helps!

Regards
Harsh
_________________
Director
Director
User avatar
B
Joined: 04 Jun 2016
Posts: 532
GMAT 1: 750 Q49 V43
Re: Which of the following is NOT an equation of one of the boundary lines  [#permalink]

Show Tags

New post 14 Jul 2016, 08:47
Which of the following is NOT an equation of one of the boundary lines of the shaded region in the figure above?
A. x=5 --> Top horizontal boundary of the figure
B. y=0 --> Left Vertical boundary of the figure
C. y=2−2x--> Hold it
D. x=0--> Bottom horizontal boundary of the figure
E. y=2−x--> The equation for the triangular cut

So Four equations have been accounted for OPTION A,B,D,E, The remaining OPTION C must be the answer.

Answer is C


reto wrote:
Attachment:
T6224.png
Which of the following is NOT an equation of one of the boundary lines of the shaded region in the figure above?

A. x=5
B. y=0
C. y=2−2x
D. x=0
E. y=2−x

_________________
Posting an answer without an explanation is "GOD COMPLEX". The world doesn't need any more gods. Please explain you answers properly.
FINAL GOODBYE :- 17th SEPTEMBER 2016. .. 16 March 2017 - I am back but for all purposes please consider me semi-retired.
GMAT Club Bot
Re: Which of the following is NOT an equation of one of the boundary lines   [#permalink] 14 Jul 2016, 08:47

Which of the following is NOT an equation of one of the boundary lines

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne