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Consider the vector v between (-4,-4,-4) and (6,7,1). If the tail of vector v is at...

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goldbergfan | Student | Honors

Posted January 15, 2013 at 10:50 PM via web

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Consider the vector v between (-4,-4,-4) and (6,7,1).

If the tail of vector v is at (5,-4,2), then the tip is at?

 

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mlehuzzah | Student, Graduate | (Level 1) Associate Educator

Posted January 15, 2013 at 10:59 PM (Answer #1)

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A vector from the point (-4,-4,-4) to (6,7,1) is really the vector

<10, 11, 5>


To get this, 6-(-4)=10, 7-(-4)=11, 1-(-4)=5

 

If you were to put the tail of that vector on the point (5,-4,2), the tip would be at (15, 7, 7), because 5+10=15, -4+7=11, 2+5=7

 

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