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Answer:
b. A relation is represented either by the Roster method or by the Set-builder method. Consider an example of two sets A = {9, 16, 25} and B = {5, 4, 3, -3, -4, -5}. The relation is that the elements of A are the square of the elements of B.
c. The relation shows the relationship between INPUT and OUTPUT. Whereas, a function is a relation that derives one OUTPUT for each given INPUT. Note: All functions are relations, but not all relations are functions
Step-by-step explanation: