Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 20 Apr 2014, 05:23

### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# for which of the following functions is f(a+b) = f(a) +f(b)

Author Message
TAGS:
Manager
Joined: 05 Jul 2006
Posts: 199
Followers: 1

Kudos [?]: 2 [0], given: 0

for which of the following functions is f(a+b) = f(a) +f(b) [#permalink]  30 Aug 2006, 10:33
00:00

Difficulty:

5% (low)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
for which of the following functions is f(a+b) = f(a) +f(b) for all positive numbers a and b?

f(x)= x^2
f(x)= x+1
f(x)= sqrt. of x
f(x)= 2/x
f(x)=-3x
CEO
Joined: 20 Nov 2005
Posts: 2924
Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008
Followers: 13

Kudos [?]: 62 [0], given: 0

Re: PS-Function GMATPrep [#permalink]  30 Aug 2006, 10:47
lan583 wrote:
for which of the following functions is f(a+b) = f(a) +f(b) for all positive numbers a and b?

f(x)= x^2
f(x)= x+1
f(x)= sqrt. of x
f(x)= 2/x
f(x)=-3x

Straight E.

1. (a+b)^2 a^2+b^2
2. a+b+1 (a+1) + (b+1)
3. √(a+b) √a + √b
4. 2/(a+b) 2/a + 2/b
5. -3(a+b) = -3a + (-3b)
_________________

SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

Re: PS-Function GMATPrep   [#permalink] 30 Aug 2006, 10:47
Similar topics Replies Last post
Similar
Topics:
For which of the following functions is f(a+b) = f(a) + f(b) 1 06 Mar 2006, 15:32
For which of the following functions is f(a+b) = f(a) + f(b) 1 11 Jun 2006, 16:06
For which of the following functions is f(a+b) = f(a) + f(b) 3 31 Aug 2007, 09:20
For which of the following functions is f(a+b) = f(a) + f(b) 6 10 Dec 2007, 21:56
For which of the following functions is f(a+b) = f(a) + f(b) 2 07 Mar 2008, 02:46
Display posts from previous: Sort by