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 an x-y plane, find the area of the common region between
[#permalink]
22 Feb 2020, 21:16
22 Feb 2020, 21:16
2
Bookmarks
00:00
Question Stats:
57% (02:08) correct
42% (02:00) wrong based on 19 sessions
Hide Show timer Statistics
In an x-y plane, find the area of the common region between |x + y| < 20 and 0 < y < 20.
A) 900
B) 800
C) 700
D) 600
E) 500
A) 900
B) 800
C) 700
D) 600
E) 500
Intern
Joined: 30 Mar 2020
Posts: 27
Given Kudos: 0
WE:Research (Health Care)
Re: In an x-y plane, find the area of the common region between
[#permalink]
18 May 2020, 19:09
18 May 2020, 19:09
Can anyone help out with this?
Re: In an x-y plane, find the area of the common region between
[#permalink]
18 May 2020, 21:51
18 May 2020, 21:51
3
1
Bookmarks
|x + y| < 20;
the modulus represent the region between lines: (x + y) < 20 and (x + y) > -20
we can draw line: x + y =20 and x + y = -20
now the region between |x + y| < 20 and 0 < y < 20, which is a parallelogram
Area of parallelogram: base*height = 40*20 = 800
the modulus represent the region between lines: (x + y) < 20 and (x + y) > -20
we can draw line: x + y =20 and x + y = -20
now the region between |x + y| < 20 and 0 < y < 20, which is a parallelogram
Area of parallelogram: base*height = 40*20 = 800
Attachments
fig.jpg [ 31.78 KiB | Viewed 1868 times ]
