Question

Given a dilation where k=2, would the image be an enlargement or a reduction?

Answer 1

For this case we have the following possible cases:

 Case 1:
 If the scale factor meets 0 <k <1 then the original figure shows a reduction.

 Case 1:
 If the scale factor complies with k> 1 then, the original figure presents an expansion.
 
 In this case, the scale factor is:
 k = 2 (k> 1)
 Therefore, the figure presents an expansion.

 Answer:
 b) Enlargement