Let X = {0,1,2,3,4,5,6,7,8} and define the function %3D f:X → X, f(n) = (n + 5) mod 9 1. What is the domain of this function? 2. What is the codomain of this function? 3. What is the range of this function? 4. Is the function one-to-one? 5. Is the function onto?

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