SOLUTION: Write the vector as a linear combination of the standard unit vectors i and j. Initial Point is (-1,2) and Terminal Point is (6, -5). My answer is 7i - 7j but it says I go

Algebra ->  Vectors -> SOLUTION: Write the vector as a linear combination of the standard unit vectors i and j. Initial Point is (-1,2) and Terminal Point is (6, -5). My answer is 7i - 7j but it says I go      Log On


   

Question 1029317: Write the vector as a linear combination of the standard unit vectors i and j.
Initial Point is (-1,2) and Terminal Point is (6, -5).

My answer is 7i - 7j but it says I got it wrong, what is this?
I did the work (6-(-1)) + (5-(-1), so this becomes 7i + (-7j) = 7i - 7j..
Answer by ikleyn(52824) About Me  (Show Source):
You can put this solution on YOUR website!
.
Write the vector as a linear combination of the standard unit vectors i and j.
Initial Point is (-1,2) and Terminal Point is (6, -5).

My answer is 7i - 7j but it says I got it wrong, what is this?
I did the work (6-(-1)) + (5-(-1), so this becomes 7i + (-7j) = 7i - 7j..
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1.  Your answer is correct.

2.  The work is
    (6-(-1))i + (-5-2)j =  7i + (-7j) = 7i - 7j.