Relations and Functions


a relation is a connection between the elements of a set or the elements of two sets.

e.g. "is greater than" and " is twice the size of " are examples of relations.

a function is a special type of relation.

Key Skills

  • know the difference between a function and a relation
  • express a relation in a number of different forms. i.e. ordered pairs, mapping, table, graph, formula




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