Thread: Homework help with Polynomial and Rational Function

(1) For the function
h(x) = x3 – x2 – 17x -15,

use long division to determine which of the following are factors of h(x)

a) x + 5
b) x + 1
c) x + 3

(2) Determine the oblique asymptote of the graph of the function.

g(x) = x2 + 4x – 1 / x + 3


Please show details

Originally Posted by Kblack

(2) Determine the oblique asymptote of the graph of the function.

g(x) = x2 + 4x – 1 / x + 3

Let's see if I get it right this time, seeing as I screwed this up a couple of days ago.



Do the division:


So when x goes to infinity, the last term goes to 0. Thus the asymptote is y = x + 1.

-Dan

Originally Posted by Kblack

(1) For the function
h(x) = x3 – x2 – 17x -15,

use long division to determine which of the following are factors of h(x)

a) x + 5
b) x + 1
c) x + 3

You will find this site to be helpful.

-Dan

Originally Posted by topsquark

You will find this site to be helpful.

-Dan

is there LaTex code for long division?

Originally Posted by Jhevon

is there LaTex code for long division?

I only know how to do it using the "code" box, and this is so fussy about putting the characters in place, I gave up on using it long ago.

-Dan

Originally Posted by Jhevon

is there LaTex code for long division?

Yes, but it's a completely mess.

Here's a simple example:



At least I'd perform this, with some of make-up.

Originally Posted by Krizalid

Yes, but it's a completely mess.

Here's a simple example:



At least I'd perform this, with some of make-up.

there's nothing for the division symbol? the huge sideways 7 thing?

Sorry, I beg your pardon?

Originally Posted by Krizalid

Sorry, I beg your pardon?

the symbol that looks like )-----------


anyway, this is going too much off topic, we should probably start something in the LaTex forum about this

Sorry, but I don't get it yet

--

Well, about the off-topic, it's work for Mods.

But you started the off-topic!

Originally Posted by Krizalid

Sorry, but I don't get it yet

--

Well, about the off-topic, it's work for Mods.

But you started the off-topic!

like this sign i use here to represent :

Code:

  ___
2 ) 1

Would it be that?

Better yet, send me a PM 'cause we're wasting lots of posts here.