The function notation form of the given equation; y = -3x +3 as in the task content is; f(x) = -3(x) +3.
According to the task content, the equation given; y = -3x +3 is to be written in function notation.
Consequently, since the function expression given is linear in variable X, it follows that the required function notation is;
f(x) = -3x +3.
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