\"\"

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The given coordinates are (7, 8), (\"\"4, 9).

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The distance between two points with coordinates \"\" is given by \"\".

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\"\"        (Substitute \"\")

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\"\"                 (Subtract: \"\")

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\"\"                            (Evaluate powers: \"\")

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\"\" units.                       (Add: \"\")\"\"

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The distance is \"\".