F(x) =radical 2x-1
] 1,2[
] 1/2, +oo[
[1/2, +oo[

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Step-by-step explanation:

All you want to do is set the radical equal to zero to determine your domain, and sinse substituting in for would make this 0, it would be the INCLUDED endpoint, so your bracket faces then continues on infinitely.

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**The ONLY time this is not the case is when you have a rationale-radical function, in which you must never have 0 in the denominatour.

its 69.420

step-by-step explanation:

the answers c