Question

A student travels 6.0 m [E] in 3.0 s and then 10.0 m [N] in 4.0 s.

Draw a vector diagram to determine the resultant displacement.
Q: How do you know where the starting point is on the graph?

Answer 1

The starting point is just an reference point. It'll probably be easier to do calculations if you start at (0,0).