Slope from two points calculator
Compute the slope m = (y₂ − y₁) / (x₂ − x₁) and the line equation through two points.
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Tool guide
Slope from two points calculator: how it works
Practical information to understand the result and use this tool correctly.
About Slope from two points calculator
Slope is rise over run between two distinct points on a line.
The tool also writes point-slope and y=mx+b forms when the slope is defined.
Matching x-coordinates produce a vertical line with undefined slope.
How to use it
- 1Enter (x₁,y₁) and (x₂,y₂).
- 2Calculate slope and line equations.
- 3Watch for the vertical-line case when x₁=x₂.
Frequently asked questions
- Horizontal line?
- Equal y values → m = 0 and y equals that constant.
- Undefined slope?
- Equal x values → vertical line x = constant.