Here is the graph of the function $f(x) = x^4 - 4x^2 - x$. You can observe the behavior discussed earlier, including the intercept at the origin and how the function grows rapidly as $|x|$ increases due to the $x^4$ term.

Would you like more details on how I derived certain points, or do you have any specific questions?

Here are five related questions:

1. How do you find critical points and classify them as maxima, minima