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

 It is currently 13 Dec 2019, 04:15

### 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

# What is the X intercept of non horizontal line m? (1) The slope of m

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 59722
What is the X intercept of non horizontal line m? (1) The slope of m  [#permalink]

### Show Tags

14 Jun 2018, 21:21
00:00

Difficulty:

65% (hard)

Question Stats:

49% (01:43) correct 51% (01:24) wrong based on 83 sessions

### HideShow timer Statistics

What is the X intercept of non horizontal line m?

(1) The slope of m is 4 times the y intercept of m
(2) The y intercept of line m is -2.

_________________
Manager
Status: EAT SLEEP GMAT REPEAT!
Joined: 28 Sep 2016
Posts: 142
Location: India
Re: What is the X intercept of non horizontal line m? (1) The slope of m  [#permalink]

### Show Tags

14 Jun 2018, 21:30
Bunuel wrote:
What is the X intercept of non horizontal line m?

(1) The slope of m is 4 times the y intercept of m
(2) The y intercept of line m is -2.

(1) The slope of m is 4 times the y intercept of m
=> -a/b=4*-c/b
=>-c/a=-1/4

Sufficient

(2) The y intercept of line m is -2
=>-c/b=-2

Insufficient

_________________
Regards,
Current Student
Affiliations: All Day Test Prep
Joined: 08 May 2018
Posts: 74
Location: United States (IL)
Schools: Booth '20 (A)
GMAT 1: 770 Q51 V49
GRE 1: Q167 V167
GPA: 3.58
Re: What is the X intercept of non horizontal line m? (1) The slope of m  [#permalink]

### Show Tags

14 Jun 2018, 21:31
1
Bunuel wrote:
What is the X intercept of non horizontal line m?

(1) The slope of m is 4 times the y intercept of m
(2) The y intercept of line m is -2.

Given:
y = mx + B
m cannot be zero
x intercept = value for x when y = 0

Statement 1)
m = 4B

0 = 4B(x) + B
0 = B(4x + 1)

B cannot be zero because then m would be zero. Therefore 4x+1 = 0.
x = -1/4

-----> SUFFICIENT

Statement 2)
y = mx - 2
0 = mx -2

----> Can't solve for x ----> INSUFFICIENT

_________________
University of Chicago Booth School of Business, Class of 2020

Unlimited private GMAT Tutoring in Chicago for less than the cost a generic prep course. No tracking hours. No watching the clock.

Manager
Joined: 16 Jan 2018
Posts: 58
Concentration: Finance, Technology
GMAT 1: 600 Q40 V33
Re: What is the X intercept of non horizontal line m? (1) The slope of m  [#permalink]

### Show Tags

23 Jun 2018, 09:55
line is y=mx+c

1) y=4cx+c

for x intercept y =0.
so, c(4x+1)=0. c cant be zero here. so, x=-1/4 SUFFICIENT

2) doesn't say much. INSUFFICIENT
Non-Human User
Joined: 09 Sep 2013
Posts: 13742
Re: What is the X intercept of non horizontal line m? (1) The slope of m  [#permalink]

### Show Tags

28 Nov 2019, 06:56
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
Re: What is the X intercept of non horizontal line m? (1) The slope of m   [#permalink] 28 Nov 2019, 06:56
Display posts from previous: Sort by