Which set of ordered pairs represents a function? {(2, –2), (1, 5), (–2, 2), (1, –3), (8, –1)} {(3, –1), (7, 1), (–6, –1), (9, 1), (2, –1)} {(6, 8), (5, 2), (–2
Question
{(2, –2), (1, 5), (–2, 2), (1, –3), (8, –1)}
{(3, –1), (7, 1), (–6, –1), (9, 1), (2, –1)}
{(6, 8), (5, 2), (–2, –5), (1, –3), (–2, 9)}
{(–3, 1), (6, 3), (–3, 2), (–3, –3), (1, –1)}
2 Answer

1. User Answers Jazminfun70
The answer is b because no xvalue can repeat. 
2. User Answers slicergiza
Answer:
{(3, –1), (7, 1), (–6, –1), (9, 1), (2, –1)}
Stepbystep explanation:
A relation is called function if there is only one output value for each input value,
Also, in order pair,
First value represents input and second value represents output.
In relation {(2, –2), (1, 5), (–2, 2), (1, –3), (8, –1)},
There are two output values for 1 which are 5 and 3,
Thus, it can not be a function,
In relation {(3, –1), (7, 1), (–6, –1), (9, 1), (2, –1)}
There is only one output value for each input value.
Thus, it is a function,
In relation {(6, 8), (5, 2), (–2, –5), (1, –3), (–2, 9)}
There are two output values for 2 which are 5 and 9,
Thus, it can not be a function,
In relation {(–3, 1), (6, 3), (–3, 2), (–3, –3), (1, –1)}
There are three output values for 3 which are 1, 2 and 3,
Thus, it can not be a function,