Answer:
{(3, –1), (7, 1), (–6, –1), (9, 1), (2, –1)}
Step-by-step 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,
