Question

The slope-intercept form of a linear equation is y = mx + b, where x and y are coordinates of an ordered pair, m is the slope of the line, and b is where the line crosses the y-axis.

Which is an equivalent equation solved for the slope, m?

Answer 1

y=mx+b
minus b both sides
y-b=mx
divide both sides by x
(y-b)/x=m
m=(y-b)/x