Question

A vector starts at point (9,-6) and ends at point (-1,-5) what is the vertical component of the vector?

Answer 1

The points are (9, -6) and (-1, -5). To find the vertical component of the vector, we have to subtract the vertical components of the points.

$-6-(-5)=-6+5=-1$

Therefore, the vertical component of the vector is

$\bar{v_y}=-1j$

Observe that we use the letter j because it refers to a vertical component.