Question

Which of the following data sets represent a function?

Answer 1

Answer:

{(3,9) , (7,4) , (1,6)}  represents a function.

Step-by-step explanation:

A function must have only one x-value per y-value. There cannot be two or more x-values in a function with different y-values. All of the other options have two or more x-values that are the same.