1. The problem statement, all variables and given/known data Find point d on the line l closest to the point c (1,1,7). Point c is on the end of a vector who's origin (1,1,2) is on line l. There is an imaginary line that connects point c to point d. This imaginary line is perpendicular to the line l. This problem is relating to vectors and just before this problem I found the parametric equation of the line l so I guess Im going to need that to work this problem. 2. Relevant equations parametric equation for l x=2+t u=3+2t z=5+3t the angle between the vector with point c and line l is 36.7 degrees c=(1,1,7) 3. The attempt at a solution I think there is a specific equation for this but I am not sure. I thought about it for awhile but am still confused.