Answer:
B. (1, -2)
Explanation:
In order to for it to be a function, the inputs need to have only one output.
The table shows:
(-1, 2), (0, -4), (1, -2), (1, 5), (2, 0), (3, 2), (4, 9)
If a x-value is repeating it is not a function.
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