# Math Help - Simple End Behavior Models

1. ## Simple End Behavior Models

$f(x) = x^3 - sin(x)$

What are the right and left-end behavior models for the function f(x). Show all work.

I never really understood these. Help is appreciated. Thanks.

2. Originally Posted by lancelot854
$f(x) = x^3 - sin(x)$

What are the right and left-end behavior models for the function f(x). Show all work.

I never really understood these. Help is appreciated. Thanks.
$\displaystyle \lim_{x \to + \infty} f(x) = + \infty$

$\displaystyle \lim_{x \to - \infty} f(x) = - \infty$

If you need more help, you will need to define exactly what is meant by "right and left-end behavior models".

3. I don't have the paper with me, so I'm doing this off the top of my head. Well, we just did limits, so I guess that's what it has to do with it.