Slope & Line Equation
Get the slope, intercept, angle and equation of the line through two points, free online.
About this calculator
From two points the slope is m = (y₂−y₁)/(x₂−x₁), the y-intercept is b = y₁ − m·x₁ and the line is y = mx + b. Vertical lines have an undefined slope and are written x = c.