Find the area of region enclosed by | x | + | y | = 3  Choose the correct choice.
A) 18 B) 11 C) 28 D) 26 E) 91
We have to consider separately the form of the function w.r.t to where x, y lies.   x &gt;0, y &gt;0, x + y = 3   x &gt; 0, y &lt; 0, x - y = 3   x &lt; 0, y &gt;0, x - y = - 3   x &lt; 0, y &lt; 0, x + y = - 3   After having drawn the above 4 lines on the graph, the graph looks like aboe   Now the area of the graph = 4 right angle triangles.   18rea of the right angle triangle = 12×3×3=9212×3×3=92   18rea of the entire region = 92×492×4 = 18 units   18nswer:18
<result>A</result>
Find the area of region enclosed by | x | + | y | = 3