Question

Let w be a vector with initial point (-4, -7) and terminal point (0, -3). Write w as a linear combination of the standard unit vectors i and j.

Im so confused on this one

Answer 1

say the point (-4,-7) is A and (0,-3) is B
then,
and position vectors of A and B can be written as
A = (-4,-7) = \(-4 i -7j\)
write similarly for B
and put those in w = ....