SOLUTION: I can not seem to figure this out. I have been workign on this for two hours and trying to figure it out..Can anyone help? Given the function f(x)=6x^2-12x-2 what is the domain

Algebra ->  Functions -> SOLUTION: I can not seem to figure this out. I have been workign on this for two hours and trying to figure it out..Can anyone help? Given the function f(x)=6x^2-12x-2 what is the domain       Log On


   

Question 174655: I can not seem to figure this out. I have been workign on this for two hours and trying to figure it out..Can anyone help?
Given the function f(x)=6x^2-12x-2 what is the domain of f?
Is it all real numbers?
Is it {x\x >or equal to -1}
{x\x> or equal to 1}
or
{x\x< or equal to -1}
In between the X's has a straight line up and down and these symbols< > has a line under it_
I appreciate all the support I can get Thank you
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Find the domain of x:
f%28x%29+=+6x%5E2-12x-2
It is probably helpful to look at the graph of the function to get an idea of for what values of the independent variable, x, the function, f(x), is defined.
graph%28400%2C400%2C-5%2C5%2C-10%2C10%2C6x%5E2-12x-2%29
You can see that the function f(x) is defined for all values of x, i.e. x = all real numbers. This means that for every real value of x, the function f(x) has a real (defined) value.