berpusat di titik (-2,-5),melalui titik) - 2,3)

jawab

(x - a)^2 + (y - b)^2 = r^2

(x+ 2)^2 + (y +5)^2 = (-2+2)^ 2+ (-5-3)^2
(x + 2)^2 +(y+5)^2 = 64
atau
x^2 +y^2 + 4x + 10y + 4 +25 - 64 = 0
x^2 +y^2 + 4x +10y - 35 = 0