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iceblits
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Homework Statement
With proof, Find all functions f: R->R such that f(x+y)=f(x)+f(y)+1 and f(1)=0
Homework Equations
The Attempt at a Solution
First I cried...then...
Since f(1)=0, f(2)=1, f(3)=2...= x-1
I'm having a really hard time conceptualizing this problem and I'm not sure what the answer is suppose to look like. Is it a finite or infinite set of functions? I'm not sure. The proof part is kinda throwing me off too. Any help would be great..
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