1. The problem statement, all variables and given/known data Find the perpendicular distance from the point (1,2,3) to the plane x-2y-z=1 One method: find the equation of the line throughout (1,2,3) perpendicular to the plane. Find the intersection of this line and the plane 3. The attempt at a solution I know the vector (1,-2,-1) is a vector perpendicular to the plane I'm not sure how to find the distance between where the vector intersects the plane to the point. I know what to do if the vector was a line, but I am confused as to how to change the vector into a line.