Why does letter m represents slope?

It turns out there is not a simple answer.  Math Forum, an authoritative website from Drexel Univ. posts the following answer:

Why call slope m has been a question that has been researched by
math historians but has not been answered definitively yet.  All the
usual suggested “reasons” have proven false.  One math historian has
been doing a search for a few years for the earliest use in a math book.
So the jury is still out on this question.

Erica Voolich


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One Response to “Why does letter m represents slope?”

  1. Jessie Says:

    interesting!! =)

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