Posted by **Soly** on Thursday, September 13, 2007 at 10:33pm.

Could you please check my answers and help me with one of them?

Find the inverse of the one to one function

1. f(x)-4x+7

-I got f^-1(x)=x-7/(-4)

2. f(x)= square root of x-8

-I got f^-1(x)=x^2-8

3. f(x)=4/(5x-1)

This one I don't understand how to find the inverse of the one to one function.

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