
Plane equation
Hi,
I am trying to understand the following problem:
Find the parametric vector equation of the line through $\displaystyle (2, 1, 2)$ and perpendicular to the plane $\displaystyle x2z=5$
The equation of the line is just the point + a vector in that direction. The answer shows:
$\displaystyle (2, 1, 2) + t(1, 0, 2)$
But how do you know it's perpendicular?

Re: Plane equation
I figured it out!
From the equation of the plane, the coefficients yield the components of the normal vector

Re: Plane equation
So I think it should be t(1,0,2) not t(1,0,2)

Re: Plane equation