Calculate the formula of a line parallel to another line. Enter the slope-intercept form of the first equation, and a coordinate point the second line passes through to calculate the equation of the second line.

Parallel Line Formula

The following formulas are used to calculate a parallel line.

m1 = m2

  • Where m1 is the slope of the first line
  • m2 is the slope of the second line

b = y2-m2*x2

  • Where b is the y-intercept in the parallel line
  • y2 is any y coordinate on the parallel line
  • X2 is any x coordinate on the parallel line

Parallel Line Definition

A parallel line is defined as any line that has the same slope as the original line.

How to calculate a parallel line?

How to calculate a parallel line?

  1. First, determine the slope of the original line.

    Measure or calculate the slope of the original line.

  2. Next, determine a coordinate point along a parallel line.

    In theory, this could be any point in space, but usually, it is given in the problem.

  3. Finally, calculate the equations of the parallel line.

    Using the formulas above, determine the parallel lines slope and y-intercept to come up with an equation.

FAQ

What is a parallel line?

A parallel line is defined as any line that has the same slope as the original line.

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parallel line formula