Final answer:
Avery enlarged the original quadrilateral proportionally to create the smaller one. No, because the shape might change even if the size is halved.
Step-by-step explanation:
Avery's dilation process can be described as Avery enlarged the original quadrilateral proportionally to create the smaller one.
In regards to whether Avery's new quadrilateral is one-half the original, the correct answer is No, because the shape might change even if the size is halved. The dilation factor determines the size relationship but not necessarily the shape.