the inverse of function $f(x) = \dfrac{2x-1}{x+5}$ is written in the form of $f^{-1}(x)=\dfrac{ax+b}{cx+d}$, where a, b, c, and d are all real numbers. If you could, try to find $\dfrac{a}{c}.$
There is already an answer/
https://web2.0calc.com/questions/help-asapp_1
Check this link and let me know if it's wrong.
Hope this helps!
It's wrong :P
Ok, thank you for telling me. I will solve it immediately.
Replace x by y and f(x) by x in the function definition, then rearrange to find y:
x=2y−1y+5 so x(y+5)=2y−1
Collect the y's y(x−2)+5x=−1 or y=−5x−1x−2
which means f−1(x)=−5x−1x−2
So a /c= -5/1
+592 
