It is currently 20 Jul 2019, 13:52

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

If the function g is deﬁned for all nonzero numbers y b

Author Message
TAGS:
Founder
Joined: 18 Apr 2015
Posts: 7395
Followers: 124

Kudos [?]: 1449 [0], given: 6602

If the function g is deﬁned for all nonzero numbers y b [#permalink]  23 May 2019, 02:23
Expert's post
If the function $$g$$ is deﬁned for all nonzero numbers $$y$$ by $$g(y)=\frac{y}{|y |}$$, find the value of each of the following.

(a) $$g(2)$$

(b) $$g(-2)$$

(c) $$g(2) -g(-2)$$

[Reveal] Spoiler: OA
(a) 1 (b) −1 (c) 2

Math Review
Question: 4
Page: 243
Difficulty: medium

_________________
GRE Instructor
Joined: 10 Apr 2015
Posts: 2170
Followers: 64

Kudos [?]: 1982 [0], given: 20

Re: If the function g is deﬁned for all nonzero numbers y b [#permalink]  23 May 2019, 05:39
Expert's post
Carcass wrote:
If the function $$g$$ is deﬁned for all nonzero numbers $$y$$ by $$g(y)=\frac{y}{|y|}$$, find the value of each of the following.

(a) $$g(2)$$

(b) $$g(-2)$$

(c) $$g(2) -g(-2)$$

[Reveal] Spoiler: OA
(a) 1 (b) −1 (c) 2

(a) $$g(2)=\frac{2}{|2|}=\frac{2}{2}=1$$

(b) $$g(-2)=\frac{-2}{|-2|}=\frac{-2}{2}=-1$$

(c) $$g(2) - g(-2) = 1 - (-1) = 2$$

Cheers,
Brent
_________________

Brent Hanneson – Creator of greenlighttestprep.com

Re: If the function g is deﬁned for all nonzero numbers y b   [#permalink] 23 May 2019, 05:39
Display posts from previous: Sort by