Find the center of the circle x2+y2+4x−6y+9=0x^2 + y^2 + 4x - 6y + 9 = 0x2+y2+4x−6y+9=0.
(−2,3)(-2, 3)(−2,3)
(2,−3)(2, -3)(2,−3)
(4,−6)(4, -6)(4,−6)
(0,0)(0, 0)(0,0)