Question

!7а4) Practice: SummarizingWrite the domain and range of the function represented below.(2,9), (3,4),(-1,2), (6, 1)Domain:Range:7

Answer 1

Remember that

The Domain is the set of all the input values, which are the x-coordinate of each ordered pair (the first number in each pair).

The Range is the set of all output values, which are the y-coordinate of each ordered pair (the second number in each pair).

In this problem we have

(2,9), (3,4),(-1,2), (6, 1)

therefore

The domain is the set (2,3,-1,6)

The range is the set (9,4,2,1)