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How to Calculate Slope
Formula
Slope measures the steepness of a line: m = (y2 - y1) / (x2 - x1), or rise over run.
A positive slope goes uphill, a negative slope goes downhill, zero is horizontal, and undefined is vertical.
Common use cases:
- Determining the grade of a road or ramp
- Graphing linear equations
- Rate of change in science and economics
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