The coordinates of three vertices of a rectangle are (2, -6), (-4, -6) and (2, 1). Find the coordinates of the fourth vertex.
(4, 1)
(4, -1)
(-4, 1)
(1, -4)
(-4, 1) because it is the only point, on a graph, that would be on the same y coordinate as (2, 1), and the same x coordinate as (-4,-6), making a rectangle.
