□ 6. Given the cosine function below in the form y = acos(bx) +d, which of the following are the values for a, b, and d in the equation? O a=-1 b=6 d=1 O a=1 b=3 d=1 -11/3 O a=1 b=3 d=1/ O a= b=1 d=1/1/12 -0.5 0 11/3 21/3

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