# Trig

posted by
**BreAnne** on
.

what is the amplitude, period, phase shift, and vertical shift of each equation?

1. y= A cos(B(x-3))+4

2. y=-2sin(2piX/3)

3. y=4cos(3pi(x+3))

4. y= -3cos(2(x-pi/4))+0.4

thank you so much!