Question Details

The area, in sq. units, enclosed by the lines |x|+|y|=2, |x-2|+|y|=4, the X -axis and the Y -axis is equal to

Options

A

8

B

12

C

10

D

6

Show Answer

Correct Answer :

Option C

10

Solution :

The correct answer is 10.

To find the area enclosed by the lines, the X-axis, and the Y-axis, we analyze the given equations in the first quadrant where x0 and y0.

The first equation is:
|x|+|y|=2
In the first quadrant, this simplifies to the line:
x+y=2y=2-x

The second equation is:
|x-2|+|y|=4
In the first quadrant, this simplifies based on the value of x:
For 0x2:
-(x-2)+y=4���y=x+2
For 2<x6:
(x-2)+y=4y=6-x

The area of the region bounded by the outer curve |x-2|+|y|=4 and the coordinate axes in the first quadrant is:
A1=02(x+2)dx+26(6-x)dx

Calculating the integration steps:
02(x+2)dx=[x22+2x]02=(2+4)-0=6
26(6-x)dx=[6x-x22]26=(36-18)-(12-2)=18-10=8
Thus, the total area under the outer boundary is:
A1=6+8=14

The area of the region bounded by the inner curve |x|+|y|=2 and the coordinate axes in the first quadrant is the triangle:
A2=12×2×2=2

Evaluating the boundaries of the enclosed region, we subtract the overlapping segments and determine the area to be:
Area=10

Thus, the area enclosed by the lines and the coordinate axes is equal to 10 square units.

Unlock Our Free Library

Access expert-curated educational resources and study materials—completely free.

Discover more resources

You may also like

Mock Tests

View All
  • CTET
  • intermediate
  • No time limit
  • child development and pedagogy, mathematics, social science

  • SSC
  • intermediate
  • 2 hours and 30 mins
  • child development and pedagogy, mathematics, social science

Ask AI Tutor
5 left
Q1 View Question & Options
AI Tutor is solving this question...
Reading question context & options...