Dear robasc, it's okay.
I am checking to see if I understand this problem correctly.
Find the magnitude of the vector u = QP--> with Q = (6, 6) and P= (-3, 8)
The arrow indicates the directed line segment.
-3 - 6 = -9
8 - 6 = 2
||v|| = sqrt( (-9)^2 + 2^2 ) = sqrt(85) = 9.2195
Original Problem:
I have just one question pertaining to the problem above.Find the magnitude of the vector u = QP--> with Q = (6, 6) and P= (-3, 8)
The arrow indicates the directed line segment.
-3 - 6 = -9
8 - 6 = 2
||v|| = sqrt( (-9)^2 + 2^2 ) = sqrt(85) = 9.2195
Assume the direction of QP is going the opposite direction such as PQ-->
Then I would find the components like this:
6 - (-3) = 9
6 - 8 = -2
is that correct?