Question

Which transformations are needed to change the parent cosine function to the cosine function below?

Answer 1

Answer:

D

Step-by-step explanation:

Answer 2

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.