Posted by Caleb on .
I have no idea how to do this, and nobody in my family knows how to either.
I have to determine the domain of the following function.
f(x)=5/(3x7)

College Algebra 
Anonymous,
the domain is where the function is defined.
Since it's just a fraction, it is defined for all real values of x.
EXCEPT that division by zero is not defined.
So, if 3x7 = 0 then f(x) is undefined.
So, the domain is all real numbers except 7/3