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Teacher professional development and classroom resources across the curriculum

 Channel Talk

# Re: [Channel-talkalgebra] Ch 7, Problem D4 - quadratic function

From: Pamela Brereton <[email protected]>
Date: Fri Dec 02 2005 - 20:14:58 EST
X-Mailer: Apple Mail (2.623)

Leann,

Thank you so much - that cleared up my confusion. Ch 8 Part C also
helped.

Pam

On Dec 1, 2005, at 9:07 PM, Leann wrote:

> Pamela,
>
> For writing a quadratic equation, you need to have at least one
> element in
> it that is squared. It is that simple. Of course, most quadratic
> equations
> involve more than that. Much more than that. The beauty of D4 is that
> you
> are free to make up your own equation. Anything you want.
> X=2Nsquared+3N or
> X=5Nsquared-8 or X=Nsquared+5 (I hope you can read that okay - I have
> a new
> laptop and have not figured out how to type an exponential!).
> Whatever you
> choose, you need to solve each equation, and then after you have
> filled out
> the first column, simply find the difference between the two 'answers'
> in
> the table, and then the difference between the next two 'answers' (to
> find
> the second differences).
>
> I hope this helped. Please let me know if you're still having trouble.
>
> Leann
>
>
> ----- Original Message -----
> From: "Pamela Brereton" <pbrereton@comcast.net>
> To: <channel-talkalgebra@learner.org>
> Sent: Thursday, December 01, 2005 4:56 PM
> Subject: [Channel-talkalgebra] Ch 7, Problem D4 - quadratic function
>
>
>> I am having trouble with Ch 7, Problem D4. I don't understand how to
>> write a quadratic function. Any suggestions? I will review the video -
>> it has been a few days since I saw it.
>>
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Received on Sat Dec 3 08:44:13 2005