04-06-2018
Mathematics

contestada

The range of the function f(x) = x + 5 is {7, 9}. What is the function’s domain?
{2, 4}
{-2, -4}
{12, 14}
{-12, -14}
{0, 5}

Respuesta :

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04-06-2018

If y is 7, x is 2. If y is 9, x is 4. Therefore the domain is {2,4}

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