Thread: Horizontal and vertical shifts of functions

1. y=-2sin(2x) 2. y=-pi cos((pi/2)x+pi)
I've been working on these problems for days so I would really appreciate if someone helped.
I found the period and amplitude and I think I found the horizontal shifts but I don't understand how to use the period to find the horizontal shift and I'm completely lost on how to find the vertical shift,please help

For

A is the amplitude
B helps determine the period
C is the horizontal shift
D is the vertical shift

That equation still leaves me confused I'm trying to teach myself trig and in my book that equation isn't there and for the equations I posted I'm not sure what B,C,or D would be :/

Originally Posted by leafsakura

1. y=-2sin(2x)

A=2 (the negative sign flips the function around the x-axis)
B=2
C=0
D=0

Originally Posted by leafsakura

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

A=
B=
C=2
D=0

Thank you