Question

What is the amplitude, period, and phase shift of f(x) = −3 cos(4x + π) + 6?

Amplitude = 3; period = pi over two; phase shift: x = negative pi over four
Amplitude = −3; period = pi over two; phase shift: x = pi over four
Amplitude = −3; period = negative pi over two; phase shift: x = negative pi over four
Amplitude = 3; period = 2π; phase shift: x = negative pi over four

Answer 1

amplitude =

`3`

period =

`(\pi)/(2 )`

phase shift =

`- (\pi)/(4)`