# Equation of a Plane

If you were expecting the equation of a plane to involve aeronautics, we''re sorry to disappoint you: This has nothing to do with flying, but it *does* involve three-dimensional space and it can be very useful as we move further into linear algebra! Let''s tackle the equation of a plane together:

## What exactly IS a plane?

A plane is a two-dimensional flat surface that extends infinitely in all directions. In linear algebra, we often work with planes in three-dimensional space, where each point in space can be represented by a unique set of coordinates

## What is the equation of a plane?

The equation of a plane can be described using a normal vector, which is a vector perpendicular to the plane, and a point on the plane. The normal vector is typically represented as

and the point on the plane is represented by:

The equation of the plane can be expressed in the form:

Alternatively, the equation of a plane can also be written in the general form:

where A, B, and C are the coefficients of the x, y, and z coordinates, respectively, and D is a constant term. In linear algebra, the equation of a plane is essential for solving problems related to three-dimensional geometry, systems of linear equations, and vector spaces. Some common applications include determining the intersection of lines and planes, calculating the angle between planes, and finding the distance between a point and a plane.

## Topics related to the Equation of a Plane

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Linear Algebra Diagnostic Tests

## Help your student achieve a better comprehension of the equation of a plane

Students who need a little extra help in math can benefit greatly from the personalized attention a tutor can provide. Whether your student needs more review on equations, planes, or the equation of a plane, a private math tutor can bolster their knowledge of supporting concepts and guide them as they work toward more advanced skills. Contact Varsity Tutors today, and we''ll find your student a qualified math tutor who can help them understand the equation of a plane and more.

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