Maybe this help
There are possible answers: Finding pairs (x,y) are the co-ordinate points
a) lyings below straight line y = -2x + 1;
b) lyings inside the circle x^2 + (y -3)^2= 9 ;
c) lyings outside the circle x^2 + (y - 3)^2 = 9;
d) lyings below the parabola y = -2...