We are given the coordinates of the vertices of a quadrilateral A(2, 1), B(4, 3), C(4, 4), D(2, 4).
A dilation of a scale factor of 3 and centered at the origin will map the vertices to:
A'(6, 3), B'(12, 9), C'(12, 12), D'(6, 12)
The quadrilateral is shown below.