en.wikipedia.org/wiki/Y-intercept

In analytic geometry, using the common convention that the horizontal axis
represents a ... one may speak of the I-**intercept** of the current-voltage
characteristic of, say, a diode. (In electrical engineering, I is the **symbol** used for
electric current.) ...

mathfour.com/algebra/why-is-the-y-intercept-called-b

I've been teaching and tutoring the slope intercept form of the equation of a line
for ... y = mx + **b**. where m = slope and **b** = **y**-**intercept**. But we don't bother to tell ...

mathforum.org/library/drmath/view/64940.html

Why is the letter '**b**' used for the **y**-**intercept** in the slope-intercept form of a linear
equation?

boards.straightdope.com/sdmb/showthread.php?t=586567

The **Y**-**intercept** is **b** because the X-intercept is a, as in the .... I don't recall anyone
explaining why these particular **symbols** were chosen, but I ...

www.reference.com/math/b-stand-y-intercept-7edcd75d11f21256

The **y**-**intercept** is the value of y where an equation crosses the y-axis and x = 0.
... The form y = mx + **b** of a linear equation is called slope-intercept form because
the coefficients m and **b** represent the ... How do I type a "squared 2" **symbol**? Q:
...

www.purplemath.com/modules/slopyint.htm

In the equation of a straight line (when the equation is written as "y = mx + **b**"), the
slope is the number "m" that is multiplied on the x, and "**b**" is the **y**-**intercept** ...

answers.yahoo.com/question/index?qid=20080228141814AAZ6SNj

But, considering **y**=mx +**b**, lets see WHY m is the slope and **b** the .... The reason
for choosing a particular **symbol** is that you can refer to it easily ...

services.math.duke.edu/education/webfeats/Slope/Slopederiv.html

In his "Earliest Uses of **Symbols** from Geometry" web page, . ... George Salmon (
1819-1904), an Irish mathematician, used y = mx + **b** in his _A Treatise on Conic
Sections_, which ... In Austria k is used for the slope, and d for the **y**-**intercept**.

www.algebra.com/algebra/homework/Graphs/Graphs.faq.question.341887.html

where a is the x-coordinate of the x-intercept and **b** is the y-coordinate of the **y**-
**intercept**. ... Eric Weisstein reports that the use of the **symbol** m for a slope was ...