Question

In order for the relation below to be a function, which value is not allowed to be the missing x-value?

{(2, 8), (4, 5), (7, 3), (9, 0), (?, 6)}

(1 point)
Responses

1
1

0
0

3
3

7
7
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Answer 1

7

Because a function cannot assign two different outputs to the same input, and 7 is already paired with 3.