Asound wave is modeled with the equation y = 1/4 cos 2pi/3 theta .
a. find the period. explain your method.
b. find the amplitude. explain your method.
c. what is the equation of the midline? what does it represent?

now, with that template in mind, let's see



and surely you know how much that is

for part B)... well, is right there, from the template what A is

for part C)

well, the equation has no vertical shifting, so the midline is the same as for the parent function cos(θ).

Correct sir/miss have a good day x < 3

The answer to your question is b’(16,14)