wow, I have no idea what you're talking about
but basically what I can do
is the minimum distance between
point and a plane
line and a plane
point and a line
line and a line
I've never encountered a point and three equations, I have no idea what to do...
This will result in the equation(s) for a kind of geometric figure (point, line, plane, etc. I'm not going to tell you which.) Then find the shortest distance from your point to this geometric figure.
this website was golddust to me when i was given a week to learn vectors from pretty much scratch!