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Homework Help: Related rates

  1. Oct 14, 2005 #1
    "Find the rate of chage of the distance between the origin and the moving point on the graph of y=x^2+1 if dx/dt=2 centimeters per second.".....im sure it is a simple problem...any help???
  2. jcsd
  3. Oct 14, 2005 #2


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    Homework Helper

    You'll get more response if you describe what you've tried or what you are thinking.
  4. Oct 14, 2005 #3


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    Science Advisor

    What IS the distance between the origin and any point (x,y)?

    What is the distance if the point lies on the curve y= x2+ 1?

    Hint: In problems with distances, it is often simpler to work with "distance2" than with distance itself!
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