Which of the following data sets represent a function?
{(2,3) , (3,1) , (2,-5)}
{(3,9) , (7,4) , (1,6)}
{(4,3) , (4,2) , (4,1)}
{(7,6) , (6,7) , (7,8)}

{(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.

answer: hey there,

the answer you are looking for is a..

hope this you!

2/3x + 7 = 29

step-by-step explanation:

two thirds = 2/3

plus a number = x

at least 29 = 29

there for you should get 2/3x + 7 = 29