Question

quadrilateral abcd is the image of quadrilateral abcd under a dilation. what is the scale factor of the dilation?

Explanation:

Step1: Identify corresponding vertical sides

Original AB: length = 2 units (vertical)
Image A'B': length = 1 unit (vertical)

Step2: Calculate scale factor

Scale factor = Image length / Original length = $\frac{1}{2}$

Answer:

$\frac{1}{2}$