SOLUTION: problem: f(x)=x^3-5 I have determined it is a 1 to 1 function. My problem is the inverse function is f^-1(x)= Thank you for any help.

Algebra ->  College  -> Linear Algebra -> SOLUTION: problem: f(x)=x^3-5 I have determined it is a 1 to 1 function. My problem is the inverse function is f^-1(x)= Thank you for any help.      Log On


   

Question 27590: problem: f(x)=x^3-5 I have determined it is a 1 to 1 function. My problem is the inverse function is f^-1(x)= Thank you for any help.
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
f(x) = x%5E3-5

so, y=x%5E3-5
y%2B5=x%5E3
%28y%2B5%29%5E%281%2F3%29=x

--> f(y) = %28y%2B5%29%5E%281%2F3%29
or f%5E%28-1%29%28x%29+=+%28x%2B5%29%5E%281%2F3%29


jon.