how to fill a colour in the area surrounded by lines, X &Yaxis and a curve

Answer 1

[KSSV]

x = [0 50 50] ;
y = [100 100 150] ;
%%Add cooridnates for closing the given points in anti clockwise direction 
xi = [50 150 150 0 0] ;
yi = [150 150 0 0 100] ;
xx = [x xi] ;
yy = [y yi] ;
plot(xx,yy)
patch(xx,yy,'r')

[KSSV]

Okay...not an issue...Follow the procedure what I have followed. Pick the other coordinates. This case is more easy. You have to pick only one coordinate.

[h b]

 thanks for the approach.