Question

If A(3, 2, 9) and B(-4, 7, 2) are two points in 3-space, then find the vector AB.

Answer 1

Hello from MrBillDoesMath!

Answer:

AB = (-7,5,-7)

Discussion:

The vector AB = B - A =

(-4, 7, 2)   -  (3, 2, 9)  =                      => subtract component-wise

(-4 -3, 7-2, 2-9) =

(-7,5,-7)

Thank you,

MrB