Question

last question: pleaseee help :/

The displacement of a mass suspended on a spring is modeled by the function y = 3sin(4)(pi)(t), where y is measured in inches and t in seconds. The amplitude, period, and frequency of the motion of the mass are given by

A. amplitude = 2, period = 2, and frequency =
B. amplitude = 4, period = 2, and frequency = 1
C. amplitude = 3, period = , and frequency = 4
D. amplitude = 3, period = , and frequency = 2

Answer 1

amplitude = 3
w = 4pi
t = 2pi/4pi = 1/2
freq = 1/t = 2

Answer 2

so which is it then?

Answer 3

deeeeeeeee

Answer 4

hey u dint mention time period for c nd d ?