It is currently 19 Jul 2019, 10:48
My Tests

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.

Let the function h be defined by h(x)= x +2. If 3h(v) = 18,

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Founder
Founder
User avatar
Joined: 18 Apr 2015
Posts: 7386
Followers: 123

Kudos [?]: 1448 [0], given: 6583

CAT Tests
Let the function h be defined by h(x)= x +2. If 3h(v) = 18, [#permalink] New post 14 May 2019, 08:32
Expert's post
00:00

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Let the function h be defined by \(h(x)= \sqrt{x}+2\). If \(3h(v) = 18\), then which one of the following is the value of \(h (\frac{v}{4})\)

(A) –4

(B) –1

(C) 0

(D) 2

(E) 4
[Reveal] Spoiler: OA

_________________

Get the 2 FREE GREPrepclub Tests

MyGuru Representative
User avatar
Affiliations: Partner at MyGuru LLC.
Joined: 13 May 2019
Posts: 113
Location: United States
GMAT 1: 770 Q51 V44
GRE 1: Q169 V168
WE: Education (Education)
Followers: 1

Kudos [?]: 98 [0], given: 2

Re: Let the function h be defined by h(x)= x +2. If 3h(v) = 18, [#permalink] New post 14 May 2019, 13:29
Expert's post
If provided algebra on the GRE, first look to solve algebraically. In this case using the formula: h(x)=√x+2.

Since provided the information that 3h(v) = 18 ÷ the equation by 3 to determine that h(v) = 6.

Then, replace h(v) with √v+2 = 6 and subtract 2 from each side to find that √v= 4, before squaring the equation to find that v = 16.

Finally, use that value for v to find v/4 = 4 and plug 4 into h(x)=√x+2 to find that √4+2 = 4, which matches choice E.
_________________

Stefan Maisnier


Director of Online Tutoring, MyGuru
www.myguruedge.com



Sign up today for a free 30-minute online GRE tutoring session!


Like us on Facebook
Watch us on YouTube
Follow us on Twitter
Follow us on Linkedin

Re: Let the function h be defined by h(x)= x +2. If 3h(v) = 18,   [#permalink] 14 May 2019, 13:29
Display posts from previous: Sort by

Let the function h be defined by h(x)= x +2. If 3h(v) = 18,

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

GRE Prep Club Forum Home| About| Terms and Conditions and Privacy Policy| GRE Prep Club Rules| Contact

Powered by phpBB © phpBB Group

Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.