Writing an equation for a line perpendicular and through a point

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Taught by mrbrianmclogan

Currently 4.0/5 Stars.

8044 views | 1 rating

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Part of video series

Previous | Forms of Equations | Next

Meets NCTM Standards:

2a
2b
2c
2d

Lesson Description:

Writing an equation for a line that is perpendicular to a given line and goes through a given point.

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Questions answered by this video:

How do you write an equation for a line that is perpendicular to a given line and goes through a given point?
How do you find the equation of a line perpendicular to y = 3/8x - 3 that passes through (4, -10)?
What is the slope of a perpendicular line?
What is the slope of the line perpendicular to y = 3/8x - 3?
How do you find the y-intercept of a line if you know the slope and a point?

Staff Review
- Currently 4.0/5 Stars.
This lesson shows an example problem of writing an equation for a line that is perpendicular to a given line that passes through a given point. First, the idea of finding the slope of a line perpendicular to a given line is explained. Then, the y-intercept is found for the new line. Unfortunately, the end of the y-intercept calculation is cut off of the screen. But all steps are explained well.

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