Math & Science100% Free Tool

Free Slope of a Line Calculator (m = (y₂ - y₁) / (x₂ - x₁)) Online

Calculate the slope (m), angle of inclination (θ), y-intercept (b), and slope-intercept equation y = mx + b passing through two coordinate points. — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.

100% Client-Side0ms Latency
Algebraic & Polynomial Solverax² + bx + c = 0
Roots of Equationx₁ = 3.000, x₂ = 2.000
Discriminant (Δ)1
Parabola Vertex(2.50, -0.25)
Axis of Symmetryx = 2.50

How It Works

1

Enter Point 1 (x₁, y₁)

Input coordinates for first point.

2

Enter Point 2 (x₂, y₂)

Input coordinates for second point.

3

Calculate Rise over Run

Formula: m = (y₂ - y₁) / (x₂ - x₁).

4

Review Equation

See slope-intercept form y = mx + b and standard form Ax + By = C.

Frequently Asked Questions

A vertical line has undefined slope because x₂ - x₁ = 0, causing division by zero.

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