Question

Let v be the vector from initial point P1 to terminal point P2. Write v in terms of i and j. 2) P1 = (0, 0); P2 = (3, -4)

Answer 1

Vector from P1 to P2 can be obtained by subtraction, similar to P2-P1.

In detail, it is
v=<x2-x1, y2-y1>
=<3-0,-4-0>
=<3,-4>