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19 March, 11:20

The range of the function f (x) = x+5 is {7,9}. What's is the function's domain?

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  1. 19 March, 11:32
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    F (x) = x + 5

    x = f (x) - 5

    The function's domain is {7 - 5, 9 - 5} = {2, 4}
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