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Math Help - Graph

  1. #1
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    Graph

    hoe do we graph f(x)= -2/3^x+1 +4
    i really dont know how to the reflections .. can someone tell me the points.
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  2. #2
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    Re: Graph

    Quote Originally Posted by darkangel06 View Post
    hoe do we graph f(x)= -2/3^x+1 +4
    i really dont know how to the reflections .. can someone tell me the points.
    Here is the plot.
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  3. #3
    Forum Admin topsquark's Avatar
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    Re: Graph

    I have two thoughts about what this function is supposed to be. Is it
    f(x) = -\frac{2}{3^{x + 1} + 4} <-- The red line in the graph below

    or
    f(x) = -\frac{2}{3^{x + 1}} + 4 <-- The blue line in the graph below

    I don't know what you mean when you are talking about "reflections." (I'm hoping your version is the blue one...it's easier to tell how to proceed!) The blue graph is a variation on the function f(x) = a^x which has a known shape. So sketch that curve and move it up 4 units. This is a vertical translation. Note that we also have x + 1 in the problem. That is a translation to the left by 1 unit.

    Does that help?

    -Dan
    Attached Thumbnails Attached Thumbnails Graph-plots.jpg  
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  4. #4
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    Re: Graph

    yea its the blue one and by reflection I mean how do we reflect the graph on x-axis or y-axis. I never get the right points :/
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