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.
GRE Math Challenge #133-In the rectangular coordinate system
[#permalink]
Updated on: 20 Feb 2020, 16:12
Updated on: 20 Feb 2020, 16:12
1
Expert Reply
1
Bookmarks
00:00
Question Stats:
84% (00:36) correct
15% (00:26) wrong based on 89 sessions
Hide Show timer Statistics
In the rectangular coordinate system, line k passes through the points (0,0) and (4,8); line m passes through the points (0,1) and (4,9).
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Kudos for the right answer and explanation
Quantity A |
Quantity B |
The slope of line k |
The slope of line m |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Kudos for the right answer and explanation
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: GRE Math Challenge #133
[#permalink]
17 May 2015, 08:24
17 May 2015, 08:24
1
sandy wrote:
In the rectangular coordinate system, line k passes through the points (0,0) and (4,8); line m passes through the points (0,1) and (4,9).
Quantity A: The slope of line k
Quantity B: The slope of line m
Quantity A: The slope of line k
Quantity B: The slope of line m
One approach is to sketch each line.
When we do so, we see that the two points for line m are each 1 UNIT ABOVE the two points for line k.
Given this, the two lines must be PARALLEL, which means their slopes are EQUAL.
Answer:
Show: ::
C
Cheers,
Brent
Attachments
linesmk.png [ 6.28 KiB | Viewed 10714 times ]
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: GRE Math Challenge #133
[#permalink]
17 May 2015, 08:26
17 May 2015, 08:26
1
sandy wrote:
In the rectangular coordinate system, line k passes through the points (0,0) and (4,8); line m passes through the points (0,1) and (4,9).
Quantity A: The slope of line k
Quantity B: The slope of line m
Quantity A: The slope of line k
Quantity B: The slope of line m
Another option is to apply the slope formula.
Slope of line k = (8 - 0)/(4 - 0) = 8/4 = 2
Slope of line m = (9 - 1)/(4 - 0) = 8/4 = 2
Answer:
Show: ::
C
Cheers,
Brent
