What is the center of the circle x2+y2−8x+6y=0x^2 + y^2 - 8x + 6y = 0x2+y2−8x+6y=0?
(−8,6)(-8, 6)(−8,6)
(4,−3)(4, -3)(4,−3)
(−4,3)(-4, 3)(−4,3)
(8,−6)(8, -6)(8,−6)