trig
posted by Teresa .
What is the period, amplitude and phase shift for:
y=2sin(3xpi)

In
y = a sin k(x  ß)
the amplitude is a
the period is 2pi/k or 360º/k
there is a phase shift of ß to the right.
Yours:
y=2sin(3xpi)
= 2sin 3(x  pi/3)
so .....