Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 563 reviewsTarget Test Prep

Coordinate Geomertry

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Source: — Data Sufficiency |
Master | Next Rank: 500 Posts
Posts: 267
Joined: Wed Jul 16, 2008 12:20 amFollowed by: 1 member
Thanked: 4 times

by Mani_mba » Sat Jul 26, 2008 5:35 am
y = (x+a)(x+b)
y = x^2 + x(a+b) + ab ---> ST1

If we look at statement 1, a+b = -1
So the eqn becomes y = x^2 - x + ab

This is insufficient as a and b are unknown...

Look at statement 2, the curve intersects y -axis at (0,-6)
Substituting these values in ST1, we imply ab=-6. But still this is insufficient as a+b is unknown.

Combining statement 1 and 2, we get y = x^2 -x -6
In x axis , y = 0. So x^2 -x -6 = 0
x = 3,-2.. The points are (3,0) and (-2,0)

Hence C.
Top
Join the discussion
User avatar
Master | Next Rank: 500 Posts
Posts: 246
Joined: Mon May 19, 2008 7:34 am
Location: Texaco Gas Station
Thanked: 7 times

by cubicle_bound_misfit » Sat Jul 26, 2008 5:48 am
Hi,
I had no idea that Vue gives second degree equation for Co ordinate in GMAT exam.

Ian, if possible Please put some light on that.

But for this problem,

X-axis intersect will happen when y=0 i.e. (x+a)(x+b)=0

so we need to find value for both a and b which is possible when we combine both the stmt.

Ans C.

regards,
Cubicle Bound Misfit
Top
Join the discussion

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 2623
Joined: Mon Jun 02, 2008 3:17 amFollowed by: 355 members
Location: Montreal
Thanked: 1090 times
GMAT Score:780

by Ian Stewart » Sat Jul 26, 2008 10:30 am
cubicle_bound_misfit wrote:Hi,
I had no idea that Vue gives second degree equation for Co ordinate in GMAT exam.

Ian, if possible Please put some light on that.

\
regards,
Yes, you can certainly see second degree equations- and a lot of other kinds of equations- in GMAT co-ordinate geometry, but you don't need to know much about them. The question above is typical; you need to know how to find x-intercepts (set y = 0), but you don't even need to know that the equation represents a parabola. As long as you know the basics in co-ordinate geometry - equations for lines, what the slope means, how to find x and y intercepts, how to calculate distances, how to graph things, etc - you should be fine; no need to learn the equations for ellipses or hyperbolas or anything like that.
For online GMAT math tutoring, or to buy my higher-level Quant books and problem sets, contact me at ianstewartgmat at gmail.com

ianstewartgmat.com
Top
Join the discussion