Respuesta :

Center (0,0)

Radius: 2

HEY THERE!!

Compare the above equation with
[tex]( {x}^{2} - h)( {y}^{2} - k) = {r}^{2} \\ \\ so \: here \: h = and \: k = 0 \\ so \: the \: centre \: is \: (0 \: 0) \: and \: the \: radius \: is \: 2[/tex]
Hope it helped you.