Answer:
2
Step-by-step explanation:
-2pi/3
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
y=-7
y-y1=m(x-x1)
y-(-7)=0(x-5)
y+7=0
y=0-7=-7
Answer:59
negative minus negative = positive
So the corect answer is (51)
