Respuesta :

You can imagine, that if you fold the paper with these pictures, and folding line is x = -1, these pictures coincide.

So answer is reflection.

It is not reflection because a reflection would have the blue moved over to where the straight edge is on the 3.

It is not a translation because the shape was not slid to another point.

It was not a dialation because the shape didnt not change size from the green to blue.

The answer is rotation because if you rotate the green on in a U-shape it will become the blue shape.

:)))