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Help with functions! f(x+1)=sq rt(x+1)^2+(x+1)?
I have no idea how to do this. Please help me. I don't want the answer per say. Just step by step instructions with explanations.
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- Anonymous1 decade agoFavorite Answer
To find f(x) in this case, replace each instance of (x+1) with x.
Then f(x) = sqrt(x^2) + x
==> f(x) = 2x
You can check that f(x+1) = sqrt(x+1)^2 + x+1 = x+1+x+1 = 2x+2 = f(x+1) with f(x) = 2x
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