Answer:
A
Step-by-step explanation:
To determine the scale factor compare the quotient of the coordinates of the image with the original coordinates
A
[tex]\frac{2}{1}[/tex] = [tex]\frac{4}{2}[/tex] = 2
B
[tex]\frac{4}{2}[/tex] = [tex]\frac{8}{4}[/tex] = 2
C
[tex]\frac{8}{4}[/tex] = [tex]\frac{16}{8}[/tex] = 2
Hence the scale factor is 2
