The graph represents the circle with centre (h,k)=((0,0) and radius, r= 10 units.
And the equation of circle is
[tex] (x-h)^2 +(y-k)^2 = r^2 [/tex]
Substituting the values of h,k, and r, we will get
[tex] (x-0)^2 +(y-0)^2 = 10^2 [/tex]
[tex] x^2 + y^2 = 100 [/tex]
And that's the required equation of the graph .
