Question

what is the equation of the circle withwith center (0,0) that passes through the point(-8,-8)

Answer 1

\[\huge\rm (x - h)^2+(y-k)^2 = r^2\]
standard form equation of circle
where (h,k) is the center so replace h and k by (0 ,0)
and replace x and y by (-8 ,-8) order pair
solve for r