GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 15 Dec 2018, 03:30

### 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

## Events & Promotions

###### Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
• ### Free GMAT Strategy Webinar

December 15, 2018

December 15, 2018

07:00 AM PST

09:00 AM PST

Aiming to score 760+? Attend this FREE session to learn how to Define your GMAT Strategy, Create your Study Plan and Master the Core Skills to excel on the GMAT.

# If x < 0 and y is 5 more than the square of x, which one of the follow

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:

### Hide Tags

SVP
Status: Preparing GMAT
Joined: 02 Nov 2016
Posts: 1925
Location: Pakistan
GPA: 3.39
If x < 0 and y is 5 more than the square of x, which one of the follow  [#permalink]

### Show Tags

17 Oct 2017, 10:56
2
2
00:00

Difficulty:

25% (medium)

Question Stats:

69% (01:00) correct 31% (01:07) wrong based on 187 sessions

### HideShow timer Statistics

If x < 0 and y is 5 more than the square of x, which one of the following expresses x in terms of y?

(A) x = $$\sqrt{y − 5}$$
(B) x = −$$\sqrt{y − 5}$$
(C) x = $$\sqrt{y + 5}$$
(D) x = $$\sqrt{y^2 − 5}$$
(E) x = −$$\sqrt{y^2 − 5}$$

_________________

Final days of the GMAT Exam? => All GMAT Flashcards.
This Post Helps = Press +1 Kudos
Best of Luck on the GMAT!!

PS Forum Moderator
Joined: 25 Feb 2013
Posts: 1217
Location: India
GPA: 3.82
Re: If x < 0 and y is 5 more than the square of x, which one of the follow  [#permalink]

### Show Tags

17 Oct 2017, 11:41
2
1
SajjadAhmad wrote:
If x < 0 and y is 5 more than the square of x, which one of the following expresses x in terms of y?

(A) x = $$\sqrt{y − 5}$$
(B) x = −$$\sqrt{y − 5}$$
(C) x = $$\sqrt{y + 5}$$
(D) x = $$\sqrt{y^2 − 5}$$
(E) x = −$$\sqrt{y^2 − 5}$$

Given $$y=5+x^2 => x^2=y-5$$

Hence $$x= ±\sqrt{y-5}$$, but as $$x<0$$ i.e negative so

$$x =$$ −$$\sqrt{y − 5}$$

Option B
VP
Status: It's near - I can see.
Joined: 13 Apr 2013
Posts: 1354
Location: India
Concentration: International Business, Operations
GMAT 1: 480 Q38 V22
GPA: 3.01
WE: Engineering (Consulting)
Re: If x < 0 and y is 5 more than the square of x, which one of the follow  [#permalink]

### Show Tags

30 May 2018, 23:28
SajjadAhmad wrote:
If x < 0 and y is 5 more than the square of x, which one of the following expresses x in terms of y?

(A) x = $$\sqrt{y − 5}$$
(B) x = −$$\sqrt{y − 5}$$
(C) x = $$\sqrt{y + 5}$$
(D) x = $$\sqrt{y^2 − 5}$$
(E) x = −$$\sqrt{y^2 − 5}$$

x < 0 and y = x^2 + 5

$$- x$$ = $$\sqrt{y - 5}$$

$$x$$ = $$-\sqrt{y - 5}$$

(B)
_________________

"Do not watch clock; Do what it does. KEEP GOING."

Target Test Prep Representative
Status: Head GMAT Instructor
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2830
Re: If x < 0 and y is 5 more than the square of x, which one of the follow  [#permalink]

### Show Tags

01 Jun 2018, 10:24
SajjadAhmad wrote:
If x < 0 and y is 5 more than the square of x, which one of the following expresses x in terms of y?

(A) x = $$\sqrt{y − 5}$$
(B) x = −$$\sqrt{y − 5}$$
(C) x = $$\sqrt{y + 5}$$
(D) x = $$\sqrt{y^2 − 5}$$
(E) x = −$$\sqrt{y^2 − 5}$$

We can create the equation:

x^2 + 5 = y

x^2 = y - 5

x =±√(y - 5)

However, since x is negative we have:

x = -√(y - 5)

Answer: B
_________________

Jeffery Miller
Head of GMAT Instruction

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

Re: If x < 0 and y is 5 more than the square of x, which one of the follow &nbs [#permalink] 01 Jun 2018, 10:24
Display posts from previous: Sort by

# If x < 0 and y is 5 more than the square of x, which one of the follow

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics

 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®.