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 →

Function question

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 142
Joined: Sun Jun 12, 2011 7:55 amFollowed by: 3 members
Thanked: 5 times
by metallicafan » Tue Jul 23, 2013 8:43 am
Please, help me to understand this statement:

"For each value of y greater than 2*(3)^(1/2), the function f(x) is such that the equation f(x) = y has the form x = (y^2 + 12)/y

My interpretation is that the result of that function is 'y' and that the value of 'y' will depend on that equation. But 'y' must be greater than 2*(3)^(1/2).

Am I right?, please your comments.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |

GMAT/MBA Expert

User avatar
Elite Legendary Member
Posts: 10392
Joined: Sun Jun 23, 2013 6:38 pmFollowed by: 511 members
Location: Palo Alto, CA
Thanked: 2867 times
GMAT Score:800

by [email protected] » Tue Jul 23, 2013 12:39 pm
Hi metallicafan,

Yes, you have interpreted this correctly.

As an aside though, this is far too complex for a typical GMAT function question. While you'll likely see one function question on Test Day, it's not going to look like this.

GMAT assassins aren't born, they're made,
Rich
Contact Rich at [email protected]
Image
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
GMAT Instructor
Posts: 2630
Joined: Wed Sep 12, 2012 3:32 pmFollowed by: 119 members
Location: East Bay all the way
Thanked: 625 times
GMAT Score:780

by Matt@VeritasPrep » Tue Jul 23, 2013 4:44 pm
Yup, you've got it right: if y is greater than 2√3, then x = y + 12/y and f(x) = y. At that point you'd probably be asked which of the five answers could define the function, or something like that.

I don't think this is too hard for the GMAT - I had two function questions on the real exam that were at least as hard as this, though in different ways - but I think it'd be about 80th percentile in math, and perhaps not really their style.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1