,where R is the quadrant x>0, y>0

]

Ok so I've done a couple of these now, but I always seem to have the problem of picturing this geometrically. Can anyone explain a simple way of knowing how equations like these will look on a graph?

what does it mean 'where R is in the quadrant, x> 0, y>0 ??

I always have problems when trying to define the limits for these types of integrals..