lainleelerspy lainleelerspy

14-07-2016
Mathematics

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the range of the function f(x) = x 5 is {7, 9}. what is the function’s domain?

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nobillionaireNobley nobillionaireNobley

15-07-2016

f(x) = x + 5
x = f(x) - 5
Domain = {7 - 5, 9 - 5} = {2, 4}

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