How to Use:

• Enter two points (x₁, y₁) & (x₂, y₂) to find the slope.
• If you know the angle of inclination, enter it.
• If you have a y-intercept (b), enter it to find the slope.
• Formula:Formula:
  • Standard: $m = \frac{y_2 - y_1}{x_2 - x_1}$
  • Angle: $m = \tan(\theta)$
  • Intercept: $y = mx + b$
  • Perpendicular Slope: $m' = -\frac{1}{m}$
• If x₁ = x₂, the slope is undefined (vertical line).
• Perpendicular slope is negative reciprocal of the given slope.