Dino711 Dino711

19-08-2016
Mathematics

contestada

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

Respuesta :

dalendrk dalendrk

26-08-2016

f(x) = x + 5

R = {7; 9}

therefore

x + 5 = 7 nd x + 5 = 9
x = 2 and x = 4

Answer: {2; 4}

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