Question

Function f is a cosine function with period 8π, amplitude 3, and a local maximum at f(0) = –3. What is the equation of the midline of the graph of f?

Answer 1

Answer: Is there suppose to be a picture or something?

Explanation:

Answer 2

y = 0

Explanation:

Since there is no indication of a shift in the graph of f(x) = 3cos(-0.25x), then the midline must be the normal midline for a cosine or sine function which is: y = 0.