Question 183119
17. In each part, sketch the vector u + v+ w, and express it in component form. 

(What am I doing wrong? I got the coordinate points of each initial point of the vectors and head of each vector, then I applied the formula and I am not getting the same answer as the book which is (-2,5). The head point for u is (5,-5), v is (-5,-3), and W is (-2,5). The coordinates for the initial points are u = (0,0), v = (5,-5), and w is (-5,-3). 
Initial points: u= (0,0) V= (5, -5), w = (-5,-3) 
Terminal Points u= (5,-5), v= (-5,-3) and w= (-2,5) 
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The answer book is wrong:
x-coordinate = 5+-5+-2 = -2
y-coordinate = -5+-3+5 = -3
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Cheers,
Stan H.