Vectors:Scalar Equation of a Plane in Space Question

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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?

Please and thanks:D
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)

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