## yomo710 2 years ago (15x^2 - 7x - 2)/(x^2 - 4) find the horizontal asymptote

1. Dido525

For any horizontal asympotote you find the limit as x approaches the function at +,- Infinity.

2. yomo710

but we need a number for this sheet, or it can be none @Dido525

3. Dido525

Yep, If you find the limit you should get a number.

4. yomo710

@Dido525 do you know how to find the limit?

5. Dido525

|dw:1355451398862:dw|

6. Dido525

I do. You should know a few rules.

7. yomo710

our teacher gave us 3 rules something like its no ha , its 0, or its a number , or none

8. Dido525

|dw:1355451478700:dw| |dw:1355451566698:dw|

9. Dido525

Where a and b are numerical coefficients in front of the polynomial.

10. Dido525

For example:|dw:1355451667511:dw|

11. yomo710

so 15/1 would be the coeffecients?

12. Dido525

|dw:1355451703538:dw|

13. Dido525

Yep!

14. yomo710

but i put 15 down and she marked it wrong

15. Dido525

|dw:1355451748940:dw|

16. yomo710

so is it 3/5 or 15

17. yomo710

@Dido525

18. Dido525

It's 15.

19. Dido525

That was just an example.

20. yomo710

i put 15 lol she marked it wrong,

21. Dido525

You are correct. I don't know why she would mark it as incorrect.

22. Dido525

SHE is wrong.

23. yomo710

i put x = 15, would it be x = -15?

24. Dido525

No just 15.

25. yomo710

ok thanks, ill have to tell her

26. Dido525

Cool.