I'm having trouble with these problems..matter of fact I don't even know where to start..please help thanks.
1. Find the distance of the point from the line through which points in the direction of .
2. Find the vector which makes an angle of 60 degrees with the vector and which is of the same length as , and is counterclockwise to .
3. You start walking from a point with coordinates (1, 1) and arrived at the point with coordinates (2, 5). If you began walking in the direction of the vector and you change direction only once, when you make a turn at a right angle, what are the coordinates of the point where you make the turn?
I figured out 2 and 3 already. I still need help on 1. Thanks