Gratuit en LigneCalculatrices
Slope Calculator
Calculate the slope, equation, distance, midpoint, and angle of a line through two points. Includes y-intercept, x-intercept, and perpendicular slope.
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Enter two points to calculate slope, line equation, distance, and more.
Point 1 (x₁, y₁)
Point 2 (x₂, y₂)
Fonctionnalités Clés — Slope Calculator
Slope (rise over run)
Y-intercept and x-intercept
Line equation (y = mx + b)
Distance between two points
Midpoint of the segment
Perpendicular slope
Angle from x-axis
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Questions Fréquemment Posées — Slope Calculator
How do you calculate slope?
Slope m = (y₂−y₁) / (x₂−x₁) = rise/run. It measures how steep a line is and in which direction. A positive slope rises left to right; negative falls; zero is horizontal; undefined is vertical.
What is slope-intercept form?
Slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept (where the line crosses the y-axis). Given two points, find m first, then solve for b using b = y₁ − m·x₁. This form makes it easy to graph a line and identify key properties.
What does a perpendicular slope mean?
Two lines are perpendicular if their slopes multiply to −1: m₁ × m₂ = −1, so m₂ = −1/m₁. A line with slope 2 has a perpendicular slope of −1/2. Horizontal lines (slope 0) are perpendicular to vertical lines (undefined slope).