Question

A function is defined as {(0,1),(2,3),(5,8),(7,2)}. Issac is asked to create one more ordered pair for the function. Which ordered pair can he add to the set to keep it a function?
1) (0,2)
2) (5,3)
3) (7,0)
4) (1,3)​

Answer 1

4) (1,3)
This is because in order to keep the ordered pairs a function, x cannot repeat. 1 is the only x that has nor repeated. Hope this helps mate.