For we have .

For we have .

Then .

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- Jan 2nd 2008, 09:36 AM #1

- Joined
- Oct 2007
- Posts
- 30

## Please help!

Let f(x) be a function whose domain is the set of real numbers, for which f(0)=1 , and such that for any pair of real numbers x and y we have :

f( xy + 1 ) = f(x) f(y) - f(y) -x + 2

Determine the formula for f(x) .

Thank you very much for your help!!! I appreciate it!

- Jan 2nd 2008, 09:48 AM #2