Question

Find the limit. (If you need to use - or , enter -INFINITY or INFINITY.)

http://www.webassign.net/cgi-bin/symimage.cgi?expr=lim_%28x-%3Einfinity%29%20%289%20x%20%2B%208%29%2F%28x%20-%202%29

Answer 1

9

Answer 2

How do you get it so fast?

Answer 3

degrees are both one. take the ratio of the leading coefficients. 9/1 = 9

Answer 4

you do it with you eyeballs

Answer 5

this is for limits of rational functions as x goes to infinity. rules are easy

Answer 6

degree of denominator is bigger, limit is 0 because big denominator means small number (by small i mean close to zero)

Answer 7

degree of the numerator is bigger means limit at infinity is infinite, or say does not exist. they want you to write infinity

Answer 8

degrees are the same it is the ratio of the leading coefficients. so it really is quick

Answer 9

if your teacher failed to mention this and said some nonsense about dividing by the term of highest degree give them a dope slap for me

Answer 10

They said it.

Answer 11

My professor always does everything the more complicated way.