# How to get the equation of the plane. [read this one]

#### UNIQNESS

http://www.isquaredonline.com/chips/1.jpg [Broken]

the above link is the answer to the problem i'm solving. i was wondering how i'd come up with the equation of the plane "x-y+z=0" when only the vertices of the plane are provided in the problem. thanks in advance.

Last edited by a moderator:
Related Introductory Physics Homework News on Phys.org

#### Galileo

Homework Helper
The equation of a plane through the origin is always of the form ax+by+cz=0.
Now you can plug in some points. Say, put in (1,1,0) and you'll find a=-b.
Putting in (0,1,1) b=-c. So the equation reduces to ax-ay+az=0 or x-y+z=0.

#### UNIQNESS

thanks for the help.

"How to get the equation of the plane. [read this one]"

### Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving