Question

An image point of a transformation has coordinates Y'(2, -4). If the pre-image point had coordinates Y(8, -16), what was the transformation and scale factor?

A. dilation with scale factor 1/4
B. dilation with scale factor 4
C. reflection with scale factor 1/4
D. reflection with scale factor 4

Answer 1

Here, Magnitude is changing, so it would be: "Dilation" instead of reflection. Scale factor would be: = Image size / Object size

s.f. = 2/8 = 1/4

In short, Your Answer would be: Option A

Hope this helps!