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 →

f is f(x).....

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
User avatar
Site Admin
Posts: 2567
Joined: Thu Jan 01, 2009 10:05 amFollowed by: 550 members
Thanked: 712 times
GMAT Score:770

by DanaJ » Sun Jun 28, 2009 8:30 am
Please note that it's one of the house rules to search for keywords before posting. ALL GMATprep questions have been answered at least once on this forum. One such example:

https://www.beatthegmat.com/f-x-f-1-x-fu ... 13580.html
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 236
Joined: Fri Nov 28, 2008 9:16 am
Thanked: 9 times

Re: f is f(x).....

by El Cucu » Mon Jun 29, 2009 11:50 am
mzimmer wrote:Please help with this question:
For which of the following functions f is f(x)=f(1-x) fpr a;; x?

A. f(x)=1-x
B. f(x)=1-x^2
C. f(x)=x^2- (1-x)^2
D. f(x)=x^2(1-x)^2
E. f(x)= x/1-x

Thank you!!
In other words, let´s pick f(x) = 3 then f (1-x)= -2

Plug in 3 and -2 in the answer choices to know whether you have the same results.

Ej. A) f(x) = 1-x Plug 3 f(3)= -2 Then Plug -2, f(-2)=F (1--2) =-1.Different results so this is not the answer.

Ej. D) f (3)= 9.4= 36 then f(-2)= 4. (-3)^2=36 Same answer in the two calculations, so this is correct.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1