Answer to Question #320455 in Analytic Geometry for game

Question

Determine the equation of the circle with radius 9

9 and center (-1,-8)

(−1,−8).

Answer 1

$(x-a)^2 +(y - b)^2 = R^2\\$

So we have:

$(x+1)^2+(y+8)^2 = 81$