Wednesday, March 25, 2009

A2 Homework

4/3 Internet Connect Activity!

3/24 Read pgs 302-303, find a video or web page that you think explains vertex form of a quadratic expression better for you than lesson 7.1. It is fine It is fine if the video is an excerpt of a longer video, just note what part I should look at. Your video or video clip should not be longer than 4 minutes. Once you have chosen your source please email it to me at Paideiamath@gmail.com Also, give me a paragraph explanation on why the video makes more sense to you than the book.

Thurs. 3/26 Do not leave your response on the blog. Write your answer on paper and then leave a colaborative answer under Daniel's notes on google docs.
1.) Given g(x) = 2x^2 + 12x + 13, write the function in vertex form. Give the coordinates of the vertex, the equation for the axis of symetry, then describe the transformations from f(x) =x^2 to g.

Thurs. 4/2 5.5 11-33 odd, 49-51

PLEASE DO NOT LEAVE HOMEWORK RESPONSES IN COMMENTS! ONLY QUESTIONS OR COMMENTS!

22 comments:

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  3. http://www.youtube.com/watch?v=F-oBYfv_5u4

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  4. Finding the Vertex by Completing the Square
    http://www.youtube.com/watch?v=F-oBYfv_5u4

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  5. This was also helpful for what we are leading into next in our book.
    http://www.youtube.com/watch?v=_gyR63rKNkA&feature=PlayList&p=13A2026A40224488&playnext=1&playnext_from=PL&index=29

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  6. http://www.youtube.com/watch?v=6J-jGDDhgSA

    Can you explain what he means we says the delta..?

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  7. http://www.youtube.com/watch?v=F-oBYfv_5u4

    This makes more sense to me than the book. I like being able to see him do the work and hear him talk about how to do it. I also like this video because he took a really confusing equation and made in quadratic form very easily.

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  9. Jojo this is the video that i was talking about!
    http://www.mathexpression.com/vertex-of-a-quadratic-equation.html

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  10. i dont understand the transformation from f(x)=x^2 to g

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  11. I dont see Daniel's notes on Google doc.

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  12. i dont see his document either....

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  13. I don't see my document either. But i saved it.

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  14. i wrote my answer on Daniel's blog and published it but i dont see it!!

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  15. i can't find Daniel's notes on google docs.

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  16. 2x^2+12x+13
    2(x^2+6x)+13
    2(x^2+6x+9)+13-2(9)
    2(x+3)^2-5
    2(x-(-3))-5
    2(x+3)^2-5
    vertex=(-3,-5)

    transformation from f(x)=x^2 to g
    vertex form:
    2(x+3)^2-5
    Vertical stretch of 2, 3 units to the left, 5 units down

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  18. I had trouble on the last two homework problems last night (april fools day)- on problem 65 i wasn't sure how to write the equation when you compress it horizontally by a factor greater than one- and on 66 i think i know how to do it but I wasn't sure. It asked us to write the equation for finding the zeros, when the zeros equal -2 and 6. Do you basically just write (x-2)(x+6) and then foil?

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  20. The page is on Google dox. but I dont know where the website is.

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  21. For help answering the questions use this post: Great websites for Quadratic Equations (and Study Sheets)

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