Question 174655
Find the domain of x:
{{{f(x) = 6x^2-12x-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(400,400,-5,5,-10,10,6x^2-12x-2)}}}
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.