Semi Circle Path from one position to another

Newbie & Debugging Questions
#1

Guys i am trying to move a sprite from one point to another in a semi circle

this is the formula i have found to move a sprite in a semi circle

if(x < radius*2){
			y = (int) Math.sqrt(Math.pow(radius, 2) - Math.pow(x, 2));
			x++;
			sprite.setPosition(x, y);
		}

x is initialized to -radius
But the problem is that it draws the semicircle around 0,0 or the origin

I cant get it to shift

Just need a pointer