It is currently 21 Oct 2017, 23:47

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

If g(x)=ax^5+bx^3+1, and g(5)=10, then g(-5)=? (A) -10 (B)

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Current Student
User avatar
Joined: 11 May 2008
Posts: 555

Kudos [?]: 222 [0], given: 0

If g(x)=ax^5+bx^3+1, and g(5)=10, then g(-5)=? (A) -10 (B) [#permalink]

Show Tags

New post 31 Jul 2008, 10:56
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

. If g(x)=ax^5+bx^3+1, and g(5)=10, then g(-5)=?
(A) -10
(B) -8
(C) -6
(D) 0
(E) 4

Kudos [?]: 222 [0], given: 0

Director
Director
User avatar
Joined: 12 Jul 2008
Posts: 514

Kudos [?]: 162 [0], given: 0

Schools: Wharton
Re: DIFF type PROB... [#permalink]

Show Tags

New post 31 Jul 2008, 10:59
arjtryarjtry wrote:
. If g(x)=ax^5+bx^3+1, and g(5)=10, then g(-5)=?
(A) -10
(B) -8
(C) -6
(D) 0
(E) 4


B

10 = a*5^5 + b*5^3 +1
a*5^5 + b*5^3 = 9

g(-5) = a(-5)^5 + b(-5)^3 + 1
= -a*5^5 - b*5^3 + 1
= -(a*5^5 + b*5^3) + 1
= -9 + 1
= -8

Kudos [?]: 162 [0], given: 0

Current Student
User avatar
Joined: 11 May 2008
Posts: 555

Kudos [?]: 222 [0], given: 0

Re: DIFF type PROB... [#permalink]

Show Tags

New post 31 Jul 2008, 11:00
:good :bouncer ...ZOINKK..NICE

Kudos [?]: 222 [0], given: 0

VP
VP
avatar
Joined: 17 Jun 2008
Posts: 1374

Kudos [?]: 406 [0], given: 0

Re: DIFF type PROB... [#permalink]

Show Tags

New post 31 Jul 2008, 11:05
arjtryarjtry wrote:
. If g(x)=ax^5+bx^3+1, and g(5)=10, then g(-5)=?
(A) -10
(B) -8
(C) -6
(D) 0
(E) 4

clearly -8 is answer :
g(x)+g(-x)= 2
=> g(-5)= 2- g(5)=2-10=-8
_________________

cheers
Its Now Or Never

Kudos [?]: 406 [0], given: 0

Re: DIFF type PROB...   [#permalink] 31 Jul 2008, 11:05
Display posts from previous: Sort by

If g(x)=ax^5+bx^3+1, and g(5)=10, then g(-5)=? (A) -10 (B)

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.