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## Perpendicular

en.wikipedia.org/wiki/Perpendicular

A line is said to be perpendicular to another line if the two lines intersect at a right angle. Explicitly, a first ... means line segment AB is perpendicular to line segment CD. The point B is .......

## Perpendicular Lines

www.montereyinstitute.org/courses/Algebra1/COURSE_TEXT_RESOURCE/U04_L2_T2_text_final.html

Perpendicular lines are two or more lines that intersect at a 90-degree angle, like the two lines drawn on this graph, and the x and y axes that orient them. Perpendicular lines are ... of that number. Do the lines look perpendicular to you now?

## Identifying parallel and perpendicular lines | Relationships between ...

And one way to verify: because it sometimes looks like two lines will intersect, ..... it does matter, because perpendicular lines have 4 angles that each equal 90 ...

## Slope: Parallel and Perpendicular Lines - Purplemath

www.purplemath.com/modules/slope2.htm

Demonstrates how to determine if slopes are parallel, perpendicular, or neither. ... Besides, they're not asking if the lines look parallel or perpendicular; they're asking if the lines actually are parallel ... To be sure of your answer, do the algebra.

## Day 9: Perpendicular lines

jwilson.coe.uga.edu/emt668/emat6680.2002/jackson/chapter 5 lesson plan/day9.html

Graphically, perpendicular lines look like: Remember, that just like with parallel lines, it does not matter what the y-intercept of either line is. They will remain ...

Feb 21, 2008 ... Parallel and Perpendicular Lines. ... Finding the equation of a line perpendicular to another line that passes through a point - Duration: 10:28.

## Perpendicular and Parallel - Math is Fun

www.mathsisfun.com/perpendicular-parallel.html

... angles (90°) to. The red line is perpendicular to the blue line in both these cases: ... Lines are parallel if they are always the same distance apart (called " equidistant"), and will never meet. (They also ... Just like railroad tracks. The red curve ...

## Parallel and perpendicular lines - Homeschool Math

www.homeschoolmath.net/teaching/g/parallel_and_perpendicular.php

This lesson explains what are parallel and perpendicular lines and has varied exercises for the students. The lesson ... Do they intersect or are they parallel?

## What are Perpendicular Lines? - Definition & Meaning - Video ...

Perpendicular lines are shaped like a 'T' and have special properties that ... So, it is not enough to say two lines are perpendicular because they look like a 'T'. Many useful ... To do this, you must first put both equations in slope-intercept form .

Popular Q&A
Q: What does a perpendicular line look like?
A: It would be a line at right angles to the horizon, a line which if projected down from the earth's surface would go through the earth's center point. Read More »