What is the vertex of the parabola x=(y+4)2−7x = (y+4)^2 - 7x=(y+4)2−7?
(4,−7)(4, -7)(4,−7)
(−4,7)(-4, 7)(−4,7)
(7,−4)(7, -4)(7,−4)
(−7,−4)(-7, -4)(−7,−4)