The parabolas y=x2−2xy = x^2 - 2xy=x2−2x and y=−x2+4xy = -x^2 + 4xy=−x2+4x intersect at which points?
(0,0)(0, 0)(0,0) and (2,4)(2, 4)(2,4)
(1,−1)(1, -1)(1,−1) and (2,0)(2, 0)(2,0)
(1,0)(1, 0)(1,0) and (3,3)(3, 3)(3,3)
(0,0)(0, 0)(0,0) and (3,3)(3, 3)(3,3)