Equations of Perpendicular Lines

 perpendicular lines on a graph

Coming to a "T"

It's easy to recognize perpendicular lines on a graph; they come to a T- meeting at a perfect right angle. But what does that mean for the equations of a line? 

STEP 1: WATCH THE VIRTUAL CLASS VIDEO AND TAKE NOTES

Make sure to note the following:

Perpendicular lines have slopes that are opposite in two ways. They have the opposite sign, and they are reciprocals. One you know the slope of a line, it's easy enough to solve for the y-intercept, then plug both into the slope-intercept form of a line. 

Do you have a question about the class video, practice, or example problems? Post a picture to our FB group for immediate assistance. Be sure to include the lesson name and level in your post. 

STEP 2: COMPLETE ONE LEVEL OF PRACTICE

NEED MORE HELP? CHECK OUT THE SOLUTIONS AND EXAMPLE VIDEOS 

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