Line Lies in a Plane

Rarely Tested

Line Lies in a Plane

A line:

$$\frac{x-x_1}{a}=\frac{y-y_1}{b}=\frac{z-z_1}{c}$$

lies in plane:

$$Ax+By+Cz+D=0$$

if:

$$Aa+Bb+Cc=0$$

and:

$$Ax_1+By_1+Cz_1+D=0$$

Usage

- Used to verify that every point of a line belongs to a given plane.

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