Chuck Norris

Hi, I'm trying to draw a smiley face on a graphics calculator without conics, however I am stuck on how to make y the subject of a function in which the function is a conic and is essentially a circle. How do you make y the subject of the equation? (x-5)^2+(y+5)^2=4 ^ denotes to the power of.

I read somewhere that for every particle of matter ''created'' there is an antimatter equvalent. So what happened to the antimatter? Sorry if I posted in the wrong section.