How do you find the period, amplitude and sketch #y=4cos(x+pi/4)#?
1 Answer
Aug 13, 2017
The amplitude is 4 because that is the coefficient in front of the trig function . The period is 2pi because period =2pi/b and b, the coefficient on the x variable is 1. There is a shift to the left of the y axis by Pi/4 units.
