Answer:
{(2,9),(-4,-6), (9,6), (0,6)}
Step-by-step explanation:
A function has no repeating inputs (x-values) in a given set of ordered pairs.
The bottom set is a function. There are no repeating inputs in the given pairs.
All other sets have a repeating input; Therefore they are not functions.
{(9,8),(-1,7),(-1, -9), (3, -1)}
{(9,5),(4,6), (9,8),(-6,9)}
{(-8,0),(-8,2), (5, -7),(-2,-9)}
Brainilest Appreciated.
