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If the x-intercept of line L is -5 and the slope is equal to 5/2,

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Manager
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Joined: 17 Oct 2016
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Location: India
Concentration: General Management, Healthcare
GMAT 1: 640 Q40 V38
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WE: Pharmaceuticals (Health Care)
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If the x-intercept of line L is -5 and the slope is equal to 5/2, [#permalink]

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New post 16 Aug 2017, 18:54
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

76% (00:42) correct 24% (01:12) wrong based on 21 sessions

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If the x-intercept of line L is -5 and the slope is equal to 5/2, Find the y-intercept of the line L.


A. -2

B. -5/2

C. 2

D. 5/2

E. 25/2
[Reveal] Spoiler: OA

_________________

Sometimes you have to burn yourself to the ground before you can rise like a phoenix from the ashes.

Dr. Pratik



Kudos [?]: 33 [0], given: 17

1 KUDOS received
Director
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Joined: 07 Dec 2014
Posts: 815

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If the x-intercept of line L is -5 and the slope is equal to 5/2, [#permalink]

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New post 16 Aug 2017, 20:41
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fitzpratik wrote:
If the x-intercept of line L is -5 and the slope is equal to 5/2, Find the y-intercept of the line L.


A. -2

B. -5/2

C. 2

D. 5/2

E. 25/2


if the slope is 5/2, we know that y moves 5 up as x moves 2 right
because x starts at -5, x needs to move 5 right to the y intercept
thus, 5/2=y/5
2y=25
y intercept=25/2
E

Last edited by gracie on 16 Aug 2017, 21:25, edited 3 times in total.

Kudos [?]: 248 [1], given: 12

Director
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Joined: 18 Aug 2016
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Kudos [?]: 140 [0], given: 123

GMAT 1: 630 Q47 V29
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Re: If the x-intercept of line L is -5 and the slope is equal to 5/2, [#permalink]

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New post 16 Aug 2017, 20:48
Y= mx + c
Y= (5/2)x + c
x=-2c/5
-5 = -2c/5
c=25/2
E


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Kudos [?]: 140 [0], given: 123

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Joined: 24 Jun 2017
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Kudos [?]: 13 [0], given: 123

Re: If the x-intercept of line L is -5 and the slope is equal to 5/2, [#permalink]

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New post 16 Aug 2017, 21:59
y=5/2*x+c

x intercept = -5 then y = 0
then
0 = 5/2*(-5) + c
c= 25/2 is a constant term y-intercept of the line

c = 25/2

Kudos [?]: 13 [0], given: 123

Manager
Manager
User avatar
S
Joined: 17 Oct 2016
Posts: 81

Kudos [?]: 33 [0], given: 17

Location: India
Concentration: General Management, Healthcare
GMAT 1: 640 Q40 V38
GPA: 3.05
WE: Pharmaceuticals (Health Care)
Premium Member Reviews Badge
Re: If the x-intercept of line L is -5 and the slope is equal to 5/2, [#permalink]

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New post 17 Aug 2017, 00:36
gracie wrote:
fitzpratik wrote:
If the x-intercept of line L is -5 and the slope is equal to 5/2, Find the y-intercept of the line L.


A. -2

B. -5/2

C. 2

D. 5/2

E. 25/2


if the slope is 5/2, we know that y moves 5 up as x moves 2 right
because x starts at -5, x needs to move 5 right to the y intercept
thus, 5/2=y/5
2y=25
y intercept=25/2
E


Hi gracie!!
Yours is one of most pragmatic approaches to the question asked.
Kudos from me.
Cheers!!!
_________________

Sometimes you have to burn yourself to the ground before you can rise like a phoenix from the ashes.

Dr. Pratik



Kudos [?]: 33 [0], given: 17

Re: If the x-intercept of line L is -5 and the slope is equal to 5/2,   [#permalink] 17 Aug 2017, 00:36
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If the x-intercept of line L is -5 and the slope is equal to 5/2,

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