+0  
 
+5
210
2
avatar

Let v be the vector from initial point P1 to terminal point P2. Write v in terms of i and j. P1= (-1,2), P2= (-9,-5)

Guest Mar 3, 2017
 #1
avatar+87333 
0

v = P2 - P1 =   < (-9) - (-1),  (-5) - (2) >    =   < -8, -7 >  =  -8i - 7j

 

 

cool cool cool

CPhill  Mar 4, 2017
 #2
avatar+19653 
0

Let v be the vector from initial point P1 to terminal point P2.

Write v in terms of i and j. P1= (-1,2), P2= (-9,-5)

 

\(\begin{array}{|rcll|} \hline \vec{v} &=& \vec{P_2} - \vec{P_1} \\ \vec{v} &=& \binom{-9}{-5} - \binom{-1}{2} \\ \vec{v} &=& \binom{-9-(-1)}{-5-2} \\ \vec{v} &=& \binom{-9+1}{-5-2} \\ \vec{v} &=& \binom{-8}{-7} \\ \vec{v} &=& -8\cdot i -7\cdot j \\ \hline \end{array} \)

 

laugh

heureka  Mar 6, 2017

8 Online Users

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.