SOLUTION: I am having problems with this practice test. My exam is next week. Please help. Find the domain of the logarithmic function f(x) =In (1-x) Please show how to do this

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: I am having problems with this practice test. My exam is next week. Please help. Find the domain of the logarithmic function f(x) =In (1-x) Please show how to do this      Log On


   



Question 139254: I am having problems with this practice test. My exam is next week. Please help.
Find the domain of the logarithmic function
f(x) =In (1-x)
Please show how to do this

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Find the domain of the logarithmic function
f(x) =In (1-x)
:
The thing to remember is that we can't have a log of a negative number;
Also we can't have a log of 0
Therefore there won't be any values of x >= 1
:
Remember you can have negative values for x; for example ln(1 - (-10)) is ln(1+10)
:
Therefore the domain will be all real numbers < 1