List all the functions from the 2-element set {J, K} to the 3-element set {m, p,

Question

                    List all the functions from the 2-element set {J, K} to the 3-element set {m, p, r}.                 

                    f1(J)=?                 

                    f1(K)=?                 

                    (etc.)                 

                    Which functions, if any, are one-to-one?                 

                                     Which functions, if any, are onto?

Explanation / Answer

i shall post the answer in comments since it is not allowing me to post here.

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