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31 May, 09:29

F the range of the function f (x) = 7x - 2.7 is {14.1, 30.9, 41.4, 58.9, 68}, what is its domain?

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  1. 31 May, 12:34
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    You need to solve 5 equations

    1. 7x - 2.1 = 14.1

    2. 7x - 2.1 = 30.9 and so on

    1. 7x - 2.1 = 14.1

    7x = 16.2

    x = 2.314 so first number in the domain is 2.314

    You can calculate the other 4 in the same way
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