- #1
Physicsissuef
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Homework Statement
For which B and D the line [tex]\left\{\begin{matrix}
x-2y+z-9=0 & \\
3x+By+z+D=0 &
\end{matrix}\right.[/tex] is in xy-plane ?
Homework Equations
The Attempt at a Solution
I found the line:
[tex]\frac{x-\frac{-D+9}{2}}{2-B}=\frac{y}{2}=\frac{z-\frac{D+27}{2}}{B+6}[/tex]
What should I do next?