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### A Way to Remember What 'm' and 'b' Mean in Slope-Intercept Form

```Date: 02/01/2004 at 13:28:19
From: David
Subject: Graphing linear equations in slope-intercept form

I noticed the questions and comments about why "m" is used for slope.
A number of years ago, a teacher at a conference explained that when
graphing linear equations in slope-intercept form (y = mx + b), you do
the following.

Begin by graphing the y-intercept ("b" in the equation means BEGIN).
Then move the slope ("m" in the equation means MOVE--rise over run).

```

```
Date: 02/02/2004 at 10:57:46
From: Doctor Rob
Subject: Re: Graphing linear equations in slope-intercept form

Thanks for writing to Ask Dr. Math, David!

That's a good mnemonic device (or memory trick) for remembering what
to do with the m and the b, but it's probably not the origin of the
why 'm' is used for slope:

Math Terms
http://mathforum.org/dr.math/faq/faq.terms.html

- Doctor Rob, The Math Forum
http://mathforum.org/dr.math/
```
Associated Topics:
High School Coordinate Plane Geometry
High School Equations, Graphs, Translations
High School Euclidean/Plane Geometry
High School Linear Equations

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