How to find the equation of a plane

Published on the Aug 17, 2016 1 year ago by Freda Dederick - End › Aug 24, 2016 1 year ago
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Homework subject

Hi! I didn't understand my maths lesson about planes, how to find the equation of a plane please? 

Homework progress

All I know is that a plane is a flat 2D surface. But then I didn't understand the rest of the explanation my teacher told us. 

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Posted on Aug 17, 2016

Well, you can define a plane with a Cartesian equation in three coordinates, normally x, y and z (or you can also use a vector equation).

The Cartesian equation of a plane will be in the form ax + by + cz + d = 0.

Also know that a normal to a plane is a line or vector which is perpendicular to the plane, so it meets the plane at a right angle. 

They need help!

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