Answer: x^2 + y^2 = 73
Explanation:
H, K would be the center
R would be the radius
H, K= 0,0
(x-0)^2 + (y-0)^2= r^2
x^2 + y^2= r ^2
To Find Radius, you find distance between Origin, and Point

X2, Y2= (-3, 8)
X1, Y1= (0,0)

R= 6

x^2+y^2= (6
)
or x^2+y^2= 73