# Vectors:Scalar Equation of a Plane in Space Question

• Mar 7th 2009, 03:06 PM
narutoblaze
Vectors:Scalar Equation of a Plane in Space Question
What is the scalar equation of the plane that contains the x-axis and the point (4, -2, 1)?

K, I know I need to find the normal to get the scalar equation but I'm confuse on what the x-axis can give? 2 direction vector? And cross product that to find normal?

• Mar 7th 2009, 03:16 PM
Plato
Quote:

Originally Posted by narutoblaze
What is the scalar equation of the plane that contains the x-axis and the point (4, -2, 1)? I need to find the normal

$N = \left\langle {1,0,0} \right\rangle \times \left\langle {4,-2,1} \right\rangle$
• Mar 7th 2009, 03:20 PM
narutoblaze
Quote:

Originally Posted by Plato
$N = \left\langle {1,0,0} \right\rangle \times \left\langle {4,-2,1} \right\rangle$

Woah thanks Plato again! I was able to get it! Hope you can help with more of my vectors problem again please!(Bow)