Question

I need help with this practice problem solving *Just so you know, I think this subject is complex numbers and vectors. I may be wrong on this though, just trying to help. I will send you an additional picture, it goes along with this practice, it is a graph, use the graph to solve

Answer 1

The first step to solve this question is to draw the vectors.

Let's start by a=(-3,-5):

Continue with b=(1,4):

The resulting vector of the substraction a-b is drawn by linking the head of both vectors:

The resulting vector is the one that is green.