March 28th, 2010, 04:06 PM  #1 
Newbie Joined: Mar 2010 Posts: 7 Thanks: 0  Related Rates, regarding 2 ships
I have never encountered this kind of problem involving 2 parabolic functions, and I hope someone can help me figure out how to start this problem, thank you. Ship A is following a parabolic path given by the formula yA = x^2 + 4 and ship B is following a parabolic path given by the formula yB = x^2 + 4x  4. At time x in hours, the positions of the ships are given by (x,yA) and x,yB). How fast is the distance between them changing when x=1 x=.5 x=2 
March 28th, 2010, 07:00 PM  #2 
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,958 Thanks: 1146 Math Focus: Elementary mathematics and beyond  Re: Related Rates, regarding 2 ships
The distance between the two ships is given by 2x^2  4x + 8.


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