Determine the vertex of the parabola x=y2−10y+28x = y^2 - 10y + 28x=y2−10y+28.
(3,5)(3, 5)(3,5)
(5,3)(5, 3)(5,3)
(28,5)(28, 5)(28,5)
(3,−5)(3, -5)(3,−5)