BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem
TTP OnDemand GMAT Video Course
Featured Course

Target Test Prep GMAT OnDemand

Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.

  • 715+ score guarantee — highest in the industry (99th percentile)
  • 52 chapters · 1,500+ lessons · 4,000+ practice questions
  • 400 hours of video · 1,500+ instructor-led HD smartboard lessons
  • 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
  • 24/7 live support + weekly Zoom office hours with GMAT instructors
  • TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
  • 1,200+ flashcards + AI-powered study assistant & daily calendar
  • OnDemand, LiveTeach & GMAT Bootcamp formats available
  • Also: GRE, SAT Math & Executive Assessment courses
  • MBA Admissions Consulting now available
  • 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
  • 200,000+ students served
  • 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★ 5.0 (559 reviews)
130-pt guarantee
$0 to start then $127/mo
Start Free 5-Day Trial Read 559 Reviews →

will the image of this ball, lie?

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
GMAT Instructor
Posts: 3650
Joined: Wed Jan 21, 2009 4:27 amFollowed by: 80 members
Location: India
Thanked: 267 times
GMAT Score:760
by sanju09 » Tue Jan 12, 2010 6:10 am
A very small ball lies at the point (3, 2) in the X - Y plane. The ball is then shifted straight down 5 units. If Y-axis were a mirror, then at what point will the image of this ball, lie?
(A) (3, -2)
(B) (-3, -3)
(C) (-3, -2)
(D)(-2, -2)
(E) (-2, -3)
Last edited by sanju09 on Wed Jan 13, 2010 2:52 am, edited 1 time in total.
The mind is everything. What you think you become. -Lord Buddha



Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001

www.manyagroup.com
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
User avatar
Master | Next Rank: 500 Posts
Posts: 124
Joined: Tue Dec 22, 2009 8:32 am
Location: Karjat
Thanked: 3 times

by linkinpark » Tue Jan 12, 2010 6:36 am
is it (-3,-3)? just a guess don't have proper reason, after moving 5 down actual point will be (3,-3) so ideally mirror image will be on other side of quadrant.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
GMAT Instructor
Posts: 3225
Joined: Tue Jan 08, 2008 2:40 pmFollowed by: 614 members
Location: Toronto
Thanked: 1710 times
GMAT Score:800

by Stuart@KaplanGMAT » Tue Jan 12, 2010 1:05 pm
sanju09 wrote:A very small ball lies at the point (3, 2) in the X - Y plane. The ball is now shifted by 5 units towards the negative Y-axis. If Y-axis were a mirror, then at what point will the image of this ball, lie?
(A) (3, -2)
(B) (-3, -3)
(C) (-3, -2)
(D)(-2, -2)
(E) (-2, -3)
I have a problem with the phrase "the ball is now shifted by 5 units towards the negative Y-axis". Is this a real GMAT question?

"Towards the negative Y-axis" is too ambiguous to be part of a proper question. At what angle are we approaching the axis? At which point on the y-axis are we aiming.

The question should instead read:

"the ball is now shifted downwards 5 units, parallel to the y-axis"

or, even simpler:

"the ball is now shifted straight down 5 units".

If that's the proper interpretation, then linkinpark has the correct answer.
Image

Stuart Kovinsky | Kaplan GMAT Faculty | Toronto

Kaplan Exclusive: The Official Test Day Experience | Ready to Take a Free Practice Test? | Kaplan/Beat the GMAT Member Discount
BTG100 for $100 off a full course
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
GMAT Instructor
Posts: 3650
Joined: Wed Jan 21, 2009 4:27 amFollowed by: 80 members
Location: India
Thanked: 267 times
GMAT Score:760

by sanju09 » Wed Jan 13, 2010 2:53 am
Thank you Stuart, edited.
The mind is everything. What you think you become. -Lord Buddha



Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001

www.manyagroup.com
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1