Question

determine whether the relation is a function. give the domain and range for the relation.
{(7, 9), (7, 10), (7, 11)}

the domain of the relation is { }.
(use a comma to separate answers as needed.)

Explanation:

Step1: Identify domain (input values)

The domain is the set of all first values in the ordered pairs: $\{7\}$

Step2: Identify range (output values)

The range is the set of all second values in the ordered pairs: $\{9, 10, 11\}$

Step3: Check if it's a function

A function requires each input to have only one output. Here, input $7$ maps to 3 outputs, so it is not a function.

Answer:

The relation is NOT a function.
Domain: $\{7\}$
Range: $\{9, 10, 11\}$