functions and function notation, domain, co-domain and range, representation of a function by rule, graph and table, inverse functions and their graphs
U1.AoS1.5
the definition of a function, the concepts of domain (including maximal, natural or implied domain), co-domain and range, notations for specification of the domain, co-domain and range and rule of a function
U1.AoS1.9
specify the rule, domain (including maximal, natural or implied domain), co-domain, and range of a function and identify whether or not a relation is a function