Find & Graph the Equation of a Parallel Line (Online Calculator)

Calculate the Equation of Your Parallel Line

Original Line Details (Two Points)

Point the Parallel Line Passes Through

Unlock the secrets of linear equations with our powerful Parallel Line Equation Calculator. Quickly determine the equation of a line parallel to a given line, passing through a specific point. Our tool simplifies complex geometry, providing both slope-intercept form and values ready for easy graphing.

Formula:

The core concept for parallel lines is that they share the same slope (m).

  • Slope (m) of the original line: m = (y2 - y1) / (x2 - x1)
  • Point-Slope Form: y - yp = m(x - xp)
  • Slope-Intercept Form: y = mx + b, where b = yp - m · xp

Where:

  • (x1, y1) and (x2, y2) are two points on the original line.
  • (xp, yp) is the point the parallel line passes through.
  • m is the slope of both the original and parallel lines.
  • b is the y-intercept of the parallel line.

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