Find the focus of the parabola with vertex at (1,2)(1, 2)(1,2) and equation (y−2)2=12(x−1)(y - 2)^2 = 12(x - 1)(y−2)2=12(x−1).
(1,5)(1, 5)(1,5)
(1,−1)(1, -1)(1,−1)
(4,2)(4, 2)(4,2)
(−2,2)(-2, 2)(−2,2)