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13-01-2017
Mathematics

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If ƒ={(5, 1),(6, 2),(7, 3),(8, 1),(9, 7)}, then the range of ƒ is

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13-01-2017

1. The points are in given in the form (x, y) : (x-coordinate, y-coordinate).
2. The range is the set of values onto which ƒ sends the x's.

The x's are sent onto the values 1, 2, 3, 1, 7 -> {1,2, 3, 7} (after removing duplicates)

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