# Math IA Help - Graphing

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Hello, I've been been working on my Math IA, and I suddenly got stuck when I came up with this graph:

I know it can't be exponential....oh and also the base equation for this graph is E = kl/r^4

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Is the plot linear if you plot E against 1/r^4?

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no. I get this:

And also in the equation I mentioned is a constant, 9. Is there another way I can make this graph into a linear?

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You have the data for the plot, right? You plotted y = 1/x^4, but I mean to use values of E against values of 1/r^4

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hmm. I actually don't have values for E and r as of yet, as I assume I have to do it later. I need to find out what type of relationship there is between E and r. know

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Didn't you say E = kl/r^4 so E is proportional to 1/r^4?

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I don't quite understand how E = kl/r^4 would be proportional to 1/r^4. and if E does =  1/r^4, what does it mean? I am sorry for asking too many questions, it's just that I feel more confused now

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For the sake of argument, let's call 1 / r^4 = x

E = klx, which means E is proportional to x.

I am not sure if this is relevant, but if you have the graph, you can obtain individual points (x, y) from the graph using the following online software https://automeris.io/WebPlotDigitizer/

Thank you!

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