Math and Arithmetic
Algebra
Calculus

# What does m equal in y equals mx plus b?

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m = the slope of the line. rise/run. Y2 - Y1/X2 - X1

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## Related Questions If y = mx + b, then x = (y-b)/m (for m not equal to zero).     Just subtract y from both sides. 'm' becomes 'A', 'b' becomes 'C' and 'B' will be equal to one. In the equation y = mx+b, b is the y-axis intercept. y=mx+b mx+b=y (mx means multipy.) Hope this helps! -natali4everca In the equation y = mx + b, x is the independent variable.Also, m is the slope, b is the y-intercept, and y is the dependent variable. There is no difference; it is a matter of choice and convention as to what letter is used. b is the intercept through the y axis  the answer is: (y-b)/x = m y = mx + b y - b = mx (y-b)/x = m  sometimes it's called the "y-intercept" because when the graph is drawn, the line intersects the y-axis at b. That is slope-intercept form of a line.   If you mean: mx+b = y then it is the formula of a straight line whereas m is the slope and b is the y intercept The y intercept is at co-ordinates (0,b). The slope and y intercept which are m and b respectively. The x in y=mx+b is the independent variable. You could solve for x, making this a function of y, with simple algebra. y = mx + b y - b = mx (y-b)/m = x  The equation for the line is y = mx +b the slope is the value of m For example if y = 3x +4 the that is the equation that completely defines the line; its slope is 3 ###### Math and ArithmeticAlgebraCalculus Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.