Calculate slope, distance, midpoint, and line equation between two points.
| Slope (m) | — |
| Y-Intercept (b) | — |
| Line Equation | — |
| Distance | — |
| Midpoint | — |
| Angle with x-axis | — |
m = (y₂−y₁)/(x₂−x₁). Positive slope = rises left to right. Negative = falls. Zero = horizontal. Undefined = vertical (shown as 90°). The angle is measured from the positive x-axis, so a falling line has a negative angle. The equation shows m and b rounded to 4 decimals.