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Math Help - Anyone Good With Algebra 2?

  1. #1
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    Anyone Good With Algebra 2?

    Wanted to see if anyone here was good with algerbra 2 and would be able to get on join.me and help me take assignments on it.

    Currently going over:

    -Reflections and Translations
    -Stretches and Compressions
    -Composition of Functions

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  2. #2
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    May 2011
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    Re: Anyone Good With Algebra 2?

    -Reflections and Translations
    Graph Reflections & Transformations:
    f(x)+a shifts the graph up a units for positive values of a, and shifts down for negative values of a.
    f(x+1) shifts the graph LEFT for positive values of a, and shifts RIGHT for negative values of a.
    -f(x) reflects graph in x-axis
    f(-x) reflects graph in y-axis

    -Stretches and Compressions
    Graph Stretches & Compression:
    kf(x) scales the graph vertically. i.e. stretches if k>1 and compresses if k<1
    f(kx) scales the graph horizontally. i.e compresses if k>1 and stretches if k<1

    -Composition of Functions
    Composite functions example:
    f(x)=x^2 -1, g(x)=3x-4
    f(g(x))
    =f(3x-4)
    =(3x-4)^2 +1

    g(f(x))
    =g(x^2 +1)
    =3(x^2 +1)-4


    you can check out my videos for help, at robbiecee2 - YouTube
    Last edited by robbiecee2; July 10th 2012 at 06:54 AM.
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