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

Dec 9, 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 …

Mar 26, 2025 · What are parallel and perpendicular lines. How to find them using their slope, formula, and graphs with examples.

Jul 23, 2025 · Understanding the properties and relationships of perpendicular lines helps in solving complex geometric problems. In this article, we will explore the definition, properties, …

This page will take a look at a few of the various examples that utilize the concept of slopes associated with parallel and perpendicular lines.

Here we will learn about parallel and perpendicular lines including how to show when two lines are parallel or perpendicular, how to calculate the gradient of parallel and perpendicular lines and …

Oct 24, 2025 · You can use two separate points from one line to find the equation of a line that runs perpendicular to it. Before you calculate the equation of the perpendicular line, you will …

They are perpendicular lines if their slopes are opposite reciprocals of each other, or the product of their slopes equals 1 –1. Note: Two lines on the same plane are perpendicular if they …

Here are several perpendicular line examples: In the graphic above, you’ll notice that the angles meet or intersect at 90°. All perpendicular lines intersect, but not all intersecting lines are …

Examples, videos, worksheets, solutions, and activities to help Algebra 1 students learn how to find the equations for perpendicular lines. Perpendicular lines have opposite reciprocal slopes.