Question

how did you find the domain and range of function using ordered pairs mapping diagram,graph,table and equation/rule? Explain​

Answer 1

A mapping diagram consists of two parallel columns. The first column represents the domain of a function f , and the other column for its range. Lines or arrows are drawn from domain to range, to represent the relation between any two elements.

Answer 2

The domain is the set of all first elements of ordered pairs (x-coordinates). The range is the set of all second elements of ordered pairs (y-coordinates). Only the elements "used" by the relation or function constitute the range.