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25 December, 12:56

Is { (4, 8), (8, 4), (4, 12), (20, 16), (12, 16) } a function

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  1. 25 December, 13:19
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    no

    Step-by-step explanation:

    Look at the first numbers of each ordered pair:

    4, 8, 4, 20, 12

    If any are repeated, the relation is NOT a function. Here, 4 is repeated.

    The relation is not a function.
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