[tex]f(x)=Acos(B(x+C))+D[/tex]
Amplitude: A (A>1 is a stretch ; 0Period: 2π/B
Horizontal shift: C (Positive is to the left, negative to the rigth)
Vertical shift: D (positive is up, negative down)
For the given function:
[tex]f(x)=\frac{1}{4}cos(x+\frac{\pi}{3})-1[/tex]
Amplitude: 1/4 (Compressed by a factor of 4)
Horizontal shift: π/3 left
Vertical shift: 1 unit down
Answer: true statements are: A, D
