Write the equation of the periodic function based on the graph.

(1 point)
Responses

y=−4cosx
y equals negative 4 cosine x

y=4cosx
y equals 4 cosine x

y=−4sinx
y equals negative 4 sine x

y=−14cosx

None of the options provided match the given graph. Can you provide a more accurate description of the graph or any additional information related to the function?