A construction project requires a surveyor to lay out a structure in the shape of quadrilateral QUAD represented by the vertices Q(9, 2), U(5, 10), A(15, 10), and D(x, y) on a coordinate grid. Determine the coordinates of point D so that the structure is a trapezoid where UAL AD.
• (5, 2)

(15, 0)

(15, 2)
(13, 14)