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

On a coordinate plane, a curve crosses the y-axis at y = 1. It has a maximum of 1 and a minimum of negative 3. It goes through 2 cycles at 2 pi.

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.

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

2.83941151 would be the answer you're looking for! : )