GRE Official Guide Question Directory
close

It is currently 24 Sep 2021, 10:23
Register
GRE Prep Club Tests
Decision Tracker
My Rewards
New comers' posts
New posts
Unanswered

Close

GRE Prep 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 GRE 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.

Go to My Error Log Learn more
Close

Request Expert Reply

Confirm Cancel
PREVIOUS TOPIC
NEXT TOPIC
If h(x) = 2x3 – 3 and h(m) = –19, what is the value of m?
2 posts Go to First Unread Post
Print view
NEW TOPIC
POST REPLY
Downloads
My Bookmarks
Reviews
Tags :
Find Similar Topics  About 

Show Tags
Hide Tags

User avatar
sandy
Retired Moderator
Joined: 07 Jun 2014
Posts: 4805
GRE 1: Q167 V156
WE:Business Development (Energy and Utilities)
If h(x) = 2x3 – 3 and h(m) = –19, what is the value of m? [#permalink] New post  25 Jul 2018, 17:10
Expert Reply
00:00

Question Stats:

88% (00:40) correct 11% (02:17) wrong based on 36 sessions

Hide Show timer Statistics

If \(h(x) = 2x^3 - 3\) and \(h(m) = -19\), what is the value of m?

(A) –3
(B) –2
(C) 2
(D) 6,856
(E) 6,862
ShowHide Answer
Official Answer
Official Answer and Stats are available only to registered users. Register/Login.

_________________
Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test
Signature Read More
User avatar
sandy
Retired Moderator
Joined: 07 Jun 2014
Posts: 4805
GRE 1: Q167 V156
WE:Business Development (Energy and Utilities)
Re: If h(x) = 2x3 – 3 and h(m) = –19, what is the value of m? [#permalink] New post  31 Jul 2018, 14:15
Expert Reply
Explanation

Be careful with the notation here. The problem indicates that \(h(m) = -19\), not that \(h(-19) =\) something else. Do not plug –19 in for x; rather, plug m in for x and set the answer equal to –19:

\(2m^3 - 3 = -19\)
\(2m^3 = -16\)
\(m^3 = -8\)
\(m = –2\)

Hence option B i correct!
_________________
Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test
Signature Read More
GRE Prep Club Bot
gmatclubot
[#permalink]
NEW TOPIC
POST REPLY
Downloads
My Bookmarks
Reviews
Moderators:
GreenlightTestPrep
GRE Instructor
4805 posts
amorphous
Moderator
730 posts
KarunMendiratta
Moderator
1319 posts
BrushMyQuant
Moderator
316 posts
rx10
Moderator
1062 posts
Ks1859
Moderator
541 posts
RA911
ScholarDen Representative
23 posts
motion2020
Moderator
276 posts
pranab223
Retired Moderator
1307 posts
Pranaygre
Retired Moderator
205 posts
Ashgre
Retired Moderator
144 posts

cron

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

Main navigation

Partners

GRE Resources

www.ets.org/gre | About | Terms and Conditions and Privacy Policy | GRE Prep Club Rules | Contact