Slope from (1, 3) to (4, 9)
The slope of the line through (1, 3) and (4, 9) is 2.
How to use this tool
- Enter x₁, y₁, x₂ and y₂ in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your slope (m) and the full breakdown beneath it.
Calculate the slope of the line passing through (1, 3) and (4, 9).
Frequently asked questions
- How do you calculate slope from two points?
- The slope formula is m = (y₂ − y₁) / (x₂ − x₁). A positive slope means the line goes up from left to right.