What is the vertex of the parabola y=(x−9)2y = (x - 9)^2y=(x−9)2?
(−9,0)(-9, 0)(−9,0)
(0,9)(0, 9)(0,9)
(9,0)(9, 0)(9,0)
(0,−9)(0, -9)(0,−9)