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31 July, 09:10

Which of the following relations represents a function? A. (2,3), (1,3), (3,3) B. (1,3), (2,3), (2,4) C. (1,3), (2,3), (1,4) D. (2,2), (2,3), (2,1)

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  1. 31 July, 09:35
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    On a function groupset, you can't have the same X values, but you can have the same Y values. Example: If you had { (3,1) (5,1) (6,3) } it would be a function since no X values are the same.

    On choice A., they all have the same Y value, but no X values are the same.

    On choice B, (2,3) and (2,4) have the same X value.

    On choice C, (1,3) and (1,4) have the same X value.

    On choice D, they all have the same X value.

    In short, your answer would be choice A, because no X values are the same.
  2. 31 July, 09:35
    0
    A function will not have ANY repeating x values ... it can have repeating y values ... just not the x ones

    so ur function is : (2,3), (1,3), (3,3) ... u see how u have no repeating x values
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