- #1
aeromat
- 114
- 0
Homework Statement
Which of the following lines is parallel to the plane 4x + y - z - 10 = 0?
ii)
x = -3t
y= -5 +2t
z = -10t
This is parallel, I confirmed it.
The Attempt at a Solution
I already know that this line is parallel to the plane.
I know that if that "If this line is parallel to the plane then its direction vector must be perpendicular to the plane's normal vector". But I don't see how this is true visually. I drew it out and I still don't understand why that condition must be met