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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
In the coordinate plane, lines j and k are parallel. The x-
[#permalink]
16 Dec 2019, 10:03
16 Dec 2019, 10:03
1
4
Bookmarks
00:00
Question Stats:
58% (00:58) correct
41% (01:20) wrong based on 102 sessions
Hide Show timer Statistics
In the coordinate plane, lines j and k are parallel. The x-intercept of line j is greater than that of line k and the product of their slopes is positive.
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
The y-intercept of line \(j\) |
The y-intercept of line \(k\) |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Re: In the coordinate plane, lines j and k are parallel. The x-
[#permalink]
16 Dec 2019, 10:12
16 Dec 2019, 10:12
OFFICIAL EXPLANATION:
Parallel lines have the same slope. Since the product of the two slopes is positive, either both slopes are positive or both slopes are negative. Here are two examples in which line j has a larger x-intercept, as specified by the problem:
Screenshot from 2019-12-17 00-12-23.png [ 114.81 KiB | Viewed 8100 times ]
If the slopes are positive, k will have the greater y-intercept, but if the slopes are negative, l will have the greater y-intercept.
Parallel lines have the same slope. Since the product of the two slopes is positive, either both slopes are positive or both slopes are negative. Here are two examples in which line j has a larger x-intercept, as specified by the problem:
Attachment:
Screenshot from 2019-12-17 00-12-23.png [ 114.81 KiB | Viewed 8100 times ]
If the slopes are positive, k will have the greater y-intercept, but if the slopes are negative, l will have the greater y-intercept.
Intern
Joined: 30 Mar 2020
Posts: 27
Given Kudos: 0
WE:Research (Health Care)
Re: In the coordinate plane, lines j and k are parallel. The x-
[#permalink]
11 May 2020, 14:37
11 May 2020, 14:37
Is there another way of looking at this? Equations? Y=mx+b
