Answer:
30.72
Step-by-step explanation:
ANSWER
Period: 2π , amplitude: 4
EXPLANATION
The graphed function is

The amplitude of this function is

The period is 2π because there is no phase shift hence the period is still equal to the parent function.
Period: 2π , amplitude: 4
I believe the answer is go8ing to be b
The right answer is c have a nice day