Find the period and the amplitude of the periodic function.

Question

y = - 4cos 8x

(1 point)

period= 1/4 amplitude= 4

period= 1/4 * pi , amplitude= 4

period= 1/2 * pi amplitude= - 4

period= 1/2 amplitude= - 4

Answer 1

period= 1/4, amplitude= 4