Answer:
-2pi/3
Step-by-step explanation:
y = 2 cos 3(x + 2π∕3) +1
y = A sin(B(x + C)) + D
amplitude is A
period is 2π/B
phase shift is C (positive is to the left)
vertical shift is D
We have a shift to the left of 2 pi /3
1199.3 (I'm assuming you mean round to the nearest tenth)
Here all three are the factor. {a+b} will be the sum and 1/2 is the term
Hopefully i am right
All the best ！！
I belive its Ounces hope this helps
