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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?

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.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 ...

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. In the equation y = mx + b, if one substitutes 0 for x, the equation becomes y =...

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 ...

tex.stackexchange.com/questions/200631/is-there-a-symbol-for-the-y-intercept-in-a-linear-model

% arara: pdflatex \documentclass{article} \usepackage{amssymb} \begin{ document} For the y-intercept, a lot of people use the letter $b$, but ...

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.

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