Question

HELP ME CHECK MY WORK
y=4cos(x+(pi/3))-2
a. Amplitude- 4
b. period- 2pi
c. phase shift- pi/3 to the left
d. vertical translation- down two

Answer 1

good job

Answer 2

is it all right @sourwing

Answer 3

yea

Answer 4

I do think though, the phase shift is negative, is all

Answer 5

\(\bf y=Acos(Bx-C)\qquad \textit{phase shift}=\cfrac{C}{B}
\\ \quad \\
y=4cos\left(x+\frac{\pi}{3}\right)\implies y=4cos\left(x-\left[-\frac{\pi}{3}\right]\right)\)

other than that, is correct :)