Question: (a) Explain the difference between a relation and a function. (b) Let the domain and co-domain of a numerical relation be A = {1, 2,

(a) Explain the difference between a relation and a function.

(b) Let the domain and co-domain of a numerical relation be A = {1, 2, 3, 4} and B = {2, 3, 5, 7, 11, 13}, respectively. Explain whether the set of ordered pairs

(i) f = {(1, 13), (2, 11), (3, 7), (4, 7)}, (ii) h = {(1, 13), (2, 11), (2, 3), (3, 7), (4, 5)}

constitute a function or not.

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