How do I find the domain

Question

I have the function of y=(e^x/3)/4 how can I find out the domain?

Answer 1

The domain is all real numbers except where the function is undefined, such as dividing by zero, or a negative number as the argument of a square root.  Now examine your given function and ask yourself if there is any number from minus infinity to plus infinity where (e^x/3)/4 is undefined?