SOLUTION: Exponential and Logarithmic Functions. Find the domain of the function. Please show work. f(x)=ln(4x-20)

Algebra ->  Finance -> SOLUTION: Exponential and Logarithmic Functions. Find the domain of the function. Please show work. f(x)=ln(4x-20)      Log On


   

Question 1068854: Exponential and Logarithmic Functions. Find the domain of the function. Please show work.
f(x)=ln(4x-20)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The argument of the natural log function must be positive,
4x-20%3E0
4x%3E20
x%3E5