Answer:
Yes.
Step-by-step explanation:
You can check corresponding points on the 2 triangles by the distances along the x axis and y axis you have to move from the origin.
For example, take the highest points on the triangles:
For the small triangle to get to this point you move 2 from the origin to the right and up 4.
On the large one we move 4 to the left and 8 up, which is twice the distance. So the scale factor is 2.
