Write the equation of the periodic function based on the graph.
(1 point)
Responses
y = −3cosx
y = −3cosx
y = 3cosx
y = 3cosx
y = −13cosx
y = −13cosx
y = −3sinx
y = −3sinx
(1 point)
Responses
y = −3cosx
y = −3cosx
y = 3cosx
y = 3cosx
y = −13cosx
y = −13cosx
y = −3sinx
y = −3sinx