Is the relation ${(1, 3) (2, 4)}$ ${(1, 3) (2, 4)}$ a function?

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Is the relation ${(1, 3) (2, 4)}$ ${(1, 3) (2, 4)}$ a function?

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Answer 1 · 2015-06-03T12:51:23

Since $(x, y) = {(1, 3), (2, 4)}$ $(x,y) = {(1,3),(2,4)}$ provides a unique mapping for any value of $x$ $x$ into a value of $y$ $y$ (that is the values of $x$ $x$ are not duplicated in the pairs of the set)
$XXXX$ $color(white)("XXXX")$ this is a function.

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Is the relation ${(1, 3) (2, 4)}$ ${(1, 3) (2, 4)}$ a function?

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Is the relation ${(1, 3) (2, 4)}$ ${(1, 3) (2, 4)}$ a function?