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I'm trying to find the equation for a graph in which the equation changes for different points.

The graph can be made accurate upto 1500, but after that it becomes inacurate for my numbers, using this equation;

[tex]x+(x*(.8-(\frac{3x}{5000})[/tex]

or

[tex]x*(1.80-(\frac{3x}{5000}))[/tex]

As you can see, it's sort of like modifying x by a percentage, that decreases as x gets bigger, an equation which changes as x does. At 0 the modifer is 180% or +80%, at 50 it's 177% (+77%), the modifer drops 3% each 50 along the x axis. At 500 its 150%, at 1000 its 120% all the way down to 0% at 3000, The problem with this is that when ever I put this into a calculator it doesn't go 3000+(0% of 3000) which WOULD = 3000, instead it somehow calculates 3000 x 0% = 0.

The idea is that as x increases y increases but at a slower rate, like an exponential function (if X > 0). Problem is I can't find any exponential function to fix it (My calculator is gay, and even though the numbers are fairly round I can't manually find one that fits it, every time I get close and add a +c to the equation it goes spastic), it was suggested to me that maybe it is a, [tex] x+(\frac{m}{ax^n+b})+c[/tex] type equation which would complicate things.

Maybe I am looking to hard, maybe I'm just an idiot but after a few hours of thinking about it my head is startinig to hurt and I'm getting lazy so any help will be usefull.

~Gelsamel

I might have to edit this if the tex is stuffed up, first time using it lol.

Edit: Okay I think I got the tex stuff down. Hehe.

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# Function of the graph.

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