## anonymous one year ago Describe the end behavior of the graph for each function. 1) f(x)=x^3+2x^2-5x+1 2) g(x)=-2x^3-8x^2+18x+72

1. anonymous

Hi.

2. anonymous

Do you remember the correlation between the highest degree of a polynomial and its end behaviour?

3. anonymous

Yep! i'm just not sure how to properly describe it

4. anonymous

would i just say down on the left and up on the right? is that correct for 1?

5. anonymous

Yes

6. anonymous

could i use the infinity signs or would that not work for this??

7. anonymous

Or the graph is going negative when going to the left, and positive when going to the right.

8. anonymous

You can use infinity signs. Infinity signs would actually be more accurate.

9. anonymous

how would i write that?

10. anonymous

That really depends.

11. anonymous

@ganeshie8

12. anonymous

I would use limits

13. anonymous

I don't get it :/

14. anonymous

I will show you what i mean.

15. anonymous

$\lim_{x \rightarrow -\infty} = -\infty$

16. anonymous

$\lim_{x \rightarrow \infty} = \infty$

17. anonymous

It is a calculus concept.

18. anonymous

You would use both of them.

19. anonymous

okay i think i get it! thank you so much :)

20. anonymous

No problem.