Question

draw the graph x-y=0 x+y=0 and ,x=4​

Answer 1

Answer:

The triangle is formed by (0,0), (2,2) and (2,-2)

Area = 1/2 | 0(2+2) + 2(-2-0) + 2(0-2)|

 

        = 1/2 | 0 -4 -4|

 

        = 1/2 × 8

           

       = 4 sq units