Last visit was: 19 Nov 2025, 09:31 It is currently 19 Nov 2025, 09:31
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
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 19 Nov 2025
Posts: 105,389
Own Kudos:
Given Kudos: 99,977
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 105,389
Kudos: 778,287
 [17]
Kudos
Add Kudos
17
Bookmarks
Bookmark this Post
User avatar
CareerGeek
Joined: 20 Jul 2017
Last visit: 19 Nov 2025
Posts: 1,292
Own Kudos:
4,269
 [3]
Given Kudos: 162
Location: India
Concentration: Entrepreneurship, Marketing
GMAT 1: 690 Q51 V30
WE:Education (Education)
GMAT 1: 690 Q51 V30
Posts: 1,292
Kudos: 4,269
 [3]
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
Maria240895chile
Joined: 23 Apr 2021
Last visit: 07 Jun 2023
Posts: 115
Own Kudos:
Given Kudos: 115
Posts: 115
Kudos: 59
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
jcabrerab
Joined: 05 Aug 2022
Last visit: 10 Dec 2022
Posts: 2
Given Kudos: 1
Posts: 2
Kudos: 0
Kudos
Add Kudos
Bookmarks
Bookmark this Post
If the other diagonal has the equation y = 3x + c, shouldn't the two points of the opposite diagonal be on that line?

(6,5) y = 3x +c ---> 5= 3(6) +c ---> c = -13
(2,3) y = 3x +c ---> 3= 3(2) +c ---> c = -3

Thus, the points are not on the same line
User avatar
Kinshook
User avatar
Major Poster
Joined: 03 Jun 2019
Last visit: 19 Nov 2025
Posts: 5,794
Own Kudos:
Given Kudos: 161
Location: India
GMAT 1: 690 Q50 V34
WE:Engineering (Transportation)
Products:
GMAT 1: 690 Q50 V34
Posts: 5,794
Kudos: 5,509
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Given: The points (2, 5) and (6, 3) are two end points of a diagonal of a rectangle.

Asked: If the other diagonal has the equation y = 3x + c, then c is

Midpoint of (2,5) & (6,3) = (4,4)
Since diagonals of a rectangle bisect each other at midpoint of diagonals, the other diagonal should also pass through (4,4)

y = 3x + c
4 = 12 + c
c = 4- 12 = -8

IMO D
User avatar
CareerGeek
Joined: 20 Jul 2017
Last visit: 19 Nov 2025
Posts: 1,292
Own Kudos:
Given Kudos: 162
Location: India
Concentration: Entrepreneurship, Marketing
GMAT 1: 690 Q51 V30
WE:Education (Education)
GMAT 1: 690 Q51 V30
Posts: 1,292
Kudos: 4,269
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Maria240895chile
Bunuel
The points (2, 5) and (6, 3) are two end points of a diagonal of a rectangle. If the other diagonal has the equation y = 3x + c, then c is

A. -5
B. -6
C. -7
D. -8
E. -9

Are You Up For the Challenge: 700 Level Questions

if I know 2 end points of a Diagonal, I know the end points of the other diagonals since is a rectangle, (2,3) and (6,5) and with that I can calculate the slope of that line, but since we know that the slope is 3, (5-3)/(6-2) should be 3, which is not. What am I doing wrong?

The mistake is you’re assuming that the rectangle has horizontal and vertical sides ONLY. There are many rectangles possible for a fixed diagonal.
User avatar
Sovit16
Joined: 30 Aug 2022
Last visit: 20 Aug 2025
Posts: 1
Own Kudos:
1
 [1]
Given Kudos: 6
Location: India
Posts: 1
Kudos: 1
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
We should have the figure parallelogram instead. As a rectangle has all angles equal to 90 degree... It is not understood why the other two end points shouldn't be (2, 3) and (6, 5)....Please explain

Posted from my mobile device
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 38,586
Own Kudos:
Posts: 38,586
Kudos: 1,079
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Moderators:
Math Expert
105389 posts
Tuck School Moderator
805 posts