Question 355649
f(t) = 2*t


let t = log(5,x)


you get f(t) = 2*t  becomes f(x) = 2*log(5,x)


The equation you are looking for would be:


f(x) = 2*(log(5,x)


This is equivalent to the equation f(t) = 2*t when t = log(5,x).


log(5,x) means the log of x to the base 5.