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  1. Finding Parallel and Perpendicular Lines - Math is Fun

    How to use Algebra to find parallel and perpendicular lines. How do we know when two lines are parallel? Their slopes are the same!

  2. How to Find the Equation of a Perpendicular Line - wikiHow

    Oct 24, 2025 · Finding the equation of a line perpendicular to another line is a simple process that can be completed in two different ways. The first way is to solve for the equation of a line with …

  3. Parallel and Perpendicular Lines - Equations, Graphs, & Examples

    Mar 26, 2025 · Parallel lines are two or more lines that lie in the same plane but never intersect, no matter how far they are extended. The symbol ‖ is used to indicate parallel lines. In …

  4. Parallel and Perpendicular Line Calculator - eMathHelp

    The calculator will find the equation of the parallel/perpendicular line to the given line passing through the given point, with steps shown.

  5. Equations of Perpendicular Lines (Video & Practice Question)

    Feb 12, 2025 · Today we’re going to take a look at how to find the equation of a line that passes through a given point and is perpendicular to another line. Let’s start with an example. Find the …

  6. Perpendicular Line Calculator | Calculator.now

    May 14, 2025 · Find the equation of a line perpendicular to another through any point. Simple inputs, clear steps, and graph visualization make this tool fast and easy to use.

  7. Parallel and Perpendicular Lines - ChiliMath

    Learn how to construct a line, parallel or perpendicular, to a given reference line and a fixed point, and in the process learn how to utilize the Point-Slope Form and Slope-Intercept Form of a Line.

  8. Straight-Line Equations: Parallel and Perpendicular Lines | Purplemath

    Demonstrates how to find parallel and perpendicular equations through a given point. Provides various worked examples, two widgets, and a warning.

  9. Finding the Equation of Perpendicular Lines - CK-12 Foundation

    Dec 1, 2025 · This lesson covers determining if two lines are parallel, perpendicular, or neither and finding the equation of perpendicular lines to a given line.

  10. Perpendicular Lines - GCSE Higher Maths - YouTube

    A video explaining how to find and use the equations of perpendicular lines...more. This video is for students aged 14+ studying GCSE Maths.