Are these transformations right and would there be any others?

Answer: A and D
Step-by-step explanation:
You are correct with the first answer: reflection across the x-axis
You are WRONG with the second answer: It is inside the absolute value so it is horizontal (not vertical). It is a stretch by a factor of [tex]\frac{1}{3}[/tex], which I am assuming is the same as a compression by a factor of 3. The correct answer is: horizontal compression by a factor of 3.