Wednesday, December 9, 2009

Limits...

Okay well... limits...

Let's see... I think I understood most of the concept of limits. After going through the homework assignments of the past two weeks, I couldn't find any problems that I had left blank... Well, there was one, but after looking at it, I realized I could've just plugged in the number to find the limit. (It was #8 on pg 66, I think the large exponent threw me off haha)

I don't think there was much else...

Wait, one thing: Is there a difference between a limit being undefined and a limit not existing? I thought you could use the terms interchangabley but now I'm not so sure... Anyways, if there is a difference, what is it?


On a seperate note: How can you tell what a graph looks when the equation is in the form of a polynomial divided by a polynomial?
Ex: How can I know what
4x³-2x²+5
3x-4
looks like without having to use a calculator?

2 comments:

  1. Hello Cynthia, i believe i can help you with your last question on how to picture the graph of a certain polynomial over another polynomial. For such case, i would simply find the end-behavior model of this equation, which would be 4/3x^2. Now, you know the graph of this function is going to be a parabola, and that's probably all you will need to know. ;]

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  2. Re Denise's comment, that would totally be legitimate IF you were ONLY looking at the end-behavior. Otherwise, I wouldn't expect you to graph it w/out the calculator.

    And yes, you are right, undefined and does not exist is the same thing, even now. =)

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