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Why cant I draw a line instead of dots in arithmetic sequence

User Grammarian
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An arithmetic sequence is discrete. The domain is the set of natural numbers {1,2,3,4,...} and we can't have an input like n = 7.2 for instance or n = 9.5; the input must be a positive whole number. This is why the graph of an arithmetic sequence is a bunch of dots that aren't connected together.

User Bartolome
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