Find the period, range, and amplitude of the cosine function. y=-4cos8x
A)period:1/4pi, range=-4<y<4, amplitude =4
B)period:1/2pi, range=-4<y<4, amplitude=-4
C)period:1/4, range=-4<y<4, amplitude = 4
D)period:1/2, range=-4<y<4, amplitude =-4
A)period:1/4pi, range=-4<y<4, amplitude =4
B)period:1/2pi, range=-4<y<4, amplitude=-4
C)period:1/4, range=-4<y<4, amplitude = 4
D)period:1/2, range=-4<y<4, amplitude =-4