Write an equation that models each of the following translation

Answer:
y = 1 - cos(x + 3)
Step-by-step explanation:
∵ y = Acos(Bx - C) + D
∵ The shift horizontally = - C/B
∵ The shift is 3 units to the left
∴ - C/B = 3
∴ C/B = -3
∴ y = 1 - cos(x + 3)