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24 February, 11:30

Which relation is NOT a function? { (1, - 5), (3, 1), (-5, 4), (4, - 2) } { (1, - 5), (-1, 6), (1, 5), (6, - 3) } { (2, 7), (3, 7), (4, 7), (5, 8) } { (3, - 2), (5, - 6), (7, 7), (8, 8) }

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  1. 24 February, 12:48
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    Answer: The second function

    Step-by-step explanation:

    It repeats x values, so it does not pass the vertical line test. By definition, a function can only have one y value for every x value, so if there is more than one x value in a function, its not a function
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