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**mgca****Member**- Registered: 2006-08-18
- Posts: 1

In y=mx+c, I know that 'm' stands for the gradient of the straight line and the 'c' stands for the y intercept, but why 'm' and 'c'???

I have heard it suggested that 'm' stands for something like 'midron' (meaning gradient) in Hebrew but ?????

And the 'c' .... interCept ??

Any suggestions??

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**Devantè****Real Member**- Registered: 2006-07-14
- Posts: 6,400

Welcome to MathsIsFun, mgca. However, this is the wrong place to discuss this...

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**mathsyperson****Moderator**- Registered: 2005-06-22
- Posts: 4,900

Moveded.

As for the question, I'm afraid I have no idea. It's possible that it doesn't come from anywhere, and they just called it m because they had to call it something.

Why did the vector cross the road?

It wanted to be normal.

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**krassi_holmz****Real Member**- Registered: 2005-12-02
- Posts: 1,905

m may be connected with "multiply" or something

And c is something as constant-it is used very much in calculus it means a free-of-unknowns addend, i think.

IPBLE: Increasing Performance By Lowering Expectations.

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**Zhylliolom****Real Member**- Registered: 2005-09-05
- Posts: 412

The m comes from MathIsFun.

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**krassi_holmz****Real Member**- Registered: 2005-12-02
- Posts: 1,905

Zhylliolom wrote:

The m comes from MathIsFun.

Right Z:)

IPBLE: Increasing Performance By Lowering Expectations.

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,684

Naturally!

Here's something: http://www.math.duke.edu/education/webfeats/Slope/Slopederiv.html

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

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