Find the slope (gradient), y-intercept, line equation, and distance between two points. Determine if lines are parallel, perpendicular, or intersecting.
Two Points
Enter coordinates (x₁, y₁) and (x₂, y₂)
Slope (m)
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Slope (m)
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y-intercept (b)
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Distance
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Angle (°)
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Enter two coordinate points
Slope = (y₂ − y₁) / (x₂ − x₁) — rise over run.
Frequently Asked Questions
What does slope represent?
Slope (m) is "rise over run" — how much y changes per unit increase in x. m>0 = line goes up left to right. m<0 = goes down. m=0 = horizontal. Undefined slope = vertical line.
What is the slope-intercept form?
y = mx + b, where m is the slope and b is the y-intercept (where the line crosses the y-axis). Given two points, you can derive both m and b.