Final answer:
The transformation that describes the dilation of a quadrilateral with the origin as the center of dilation is called scalar multiplication.
Step-by-step explanation:
The transformation that describes the dilation of quadrilateral ABCD with the origin as the center of dilation to create quadrilateral A'B'C'D' is called scalar multiplication.
In scalar multiplication, each coordinate of a point in the original quadrilateral is multiplied by a constant factor to obtain the corresponding coordinate in the dilated quadrilateral.
For example, if the scaling factor is 2, then the coordinates of point A (x,y) will become (2x,2y) in the dilated quadrilateral.