x^2+y^2-4x+6y-12=0 pojaluista pomagite srochno

Question

x^2+y^2-4x+6y-12=0 pojaluista pomagite srochno

Comments

1/4x-y-3=0

Answer 1

(x-2)^2+(y+3)^2-12-9-4=0
(x-2)^2+(y+3)^2=5^2
окружность радиуса 5 с центром (2;-3)