state period amplitude if applicable phase shift if applica

state period , amplitude, if applicable, phase shift if applicable and vertical shift if applicable for function. 5. y=6cos(5x-4pie)-2

Solution

y = 6cos(5x-4pi) - 2

This is of the form y= A cos(Bx + C) + D

Where A is the amplitude , period =2pi/B ,phase shift =-C/B   and vertical shift =D

Here we have Amplitude A=6

B = 5      C=   -4pi   D= -2

Period =2pi/5  

Phase shift = 4pi/5

Vertical shift = -2