Math 1 · Unit 4 · Lesson 2 · part 3 of 6

Move it yourself

Move the slope yourself.

Move it yourself

Move the slope yourself. The navy line has slope m. The teal line is its perpendicular partner through the same point, with slope −1/m, and its staircase shows the rise and run traded. The little square marks the right angle. Try m = 2, m = 12, m = −3, and watch the partner turn with it.

Where to go next

Next: Write a perpendicular line through a pointThe skill: given a line, write the equation of a line perpendicular to it through a given point . All the partsPerpendicular Lines and the Negative Reciprocal