Thread: Whether a line and plane are parallel?

Determine whether the line and plane are parallel. Explain your reasoning.

x = -5 – 4t, y = 1 – t, z = 3 + 2t; x + 2y + 3z – 9 = 0

Originally Posted by Civy71

Determine whether the line and plane are parallel. Explain your reasoning.
x = -5 – 4t, y = 1 – t, z = 3 + 2t; x + 2y + 3z – 9 = 0

A line is parallel to a plane if and only if the direction vector of the line is perpendicular to the normal vector of the plane.

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