Determine the end behavior for the function f(x)=-2x^3-8x

Hello @Haven55,

How are you doing? When you are finding the End Behavior, you need to find the degree and the leading coefficient. In this case, your lovely answer would be: Rises to the left and falls to the right. 

I hope I helped, and contact me if you need more assistance. 

Thank you,
Darian D. 

The leading coefficient here is negative and the exponent is odd so the end behavior will be

as x→−∞,f(x)→−∞ ​as x→∞,f(x)→∞ ​​