The graph of the function $y=f(x)$ is shown below. Four transformations of $y = f(x)$ are shown. Use them to answer the questions that follow.

• Which graph is $y = -f(x)\text{?}$
  Answer: ? A B C D
• Which graph is $y = 2f(x)\text{?}$
  Answer: ? A B C D
• Which graph is $y = -2f(x)\text{?}$
  Answer: ? A B C D
• Which graph is $y = f(x)+2\text{?}$
  Answer: ? A B C D