Question

Removing which ordered pair from the table would make the relation a function of x?

x y
1 7
4 7
2 2
4 1
3 9
(1, 7)
(2, 2)
(3, 9)
(4, 1)

Answer 1

old question but will respond so this can be closed

in order for the relation to be a function, the same input must generate the same output each time

notice in the table, there is an instance where the same input generates two different outputs, go through the choices and see which one it is. removing one of the duplicate inputs should yield your solution.