Answer:
center is (0,0) , radius =[tex]\sqrt{2}[/tex]
Step-by-step explanation:
x^2 + y^2 = 2
center radius form of a circle is (x-h)^2 +(y-k)^2 = r^2
Where center is (h,k) and r is the radius
(x-0)^2 + (y-0)^2 = 2
cener is (0,0) and radius r^2= 2
r= sqrt(2)
so center is (0,0) and radius =[tex]\sqrt{2}[/tex]