Look at this desmos art I made :D

That is really cool guest :)

That is really cool!!

One way to color in something is to do an inequality like this:

$x^{2}+\left(y-20\right)^{2}\le60\left\{y\ge21.8\right\}$

(Changed the equal sign to a  ≤  for your hat  )

Thanks Hectictar   

Sorry guest, I did not realize that you were asking a question.