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This is the equation and graph on Desmos.

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pie
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david smith
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    You say you want to graph your equation (implying you can't), but then you provide two screenshots of the graph of said equation... leading me to ask: what do you mean by "graphing"? – H. sapiens rex Jan 29 '24 at 04:35
  • Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. – Community Jan 29 '24 at 05:05
  • @H.sapiensrex By "graphing", I mean that the values in the graph don't fit the values that are plugged into the function. You can plug numbers like 1, 2, 3 ... in the fuction and it will give you the square of these numbers. However, the output that appear in graphed function in desmos differ from the outputs when I plugged inside the function. eg. (instead of 4, it gave me 6) – david smith Jan 29 '24 at 05:37
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    You are plotting the function $$n\mapsto\sum_{k=0}^{n}(2n+1)=(n+1)(2n+1)$$ instead of $$n\mapsto\sum_{k=0}^{n}(2k+1)=(n+1)^2.$$ – Sangchul Lee Jan 29 '24 at 05:46
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    Is should be $2k+1$ not $2n+1$. – Cheerful Parsnip Jan 29 '24 at 05:46
  • https://www.desmos.com/calculator/9hqxzvrpqb – D S Jan 29 '24 at 05:49

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