Homework Help: Calculus and vectors

Posted by Ted on Tuesday, February 5, 2013 at 4:11pm.

Vector AB is a vector whose tail is at (-4,2) and whose head is at (-1,3).
Calculate the magnitude of vector AB
Determine the coordinates of point D on vector CD, if C (-6,0) and vector CD= vector AB.

Please I need some help. Is there a formula to solve this? Pls help

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