Answer:

Step-by-step explanation:
Given
--- Amplitude
--- Right phase shift
Required
Identify the function
A sinusoidal function is defined as:

Substitute values for A and C

By comparison, only option (D) has the above format where

Hence (D) is correct
The answer that I would choose would be C.
It is four. So two and two you add them together to be four. Good job. Your learning :)
Answer:
(3,0)
Step-by-step explanation:
The axis of symmetry is midway between the roots