Respuesta :
Answer: A phase shift horizontal translation to the right.
Step-by-step explanation:
A periodic function that does not start at the sinusoidal axis or at a maximum or a minimum has been shifted horizontally. This horizontal movement allows for different starting points since a cosine wave does not have a beginning or an end.
In this question, the sinusoidal wave is a cosine function of F(x) = cos x.
So to change the parent cosine function to the cosine function above, A phase shift horizontal translation to the right must have been done.