1. Aug 30, 2008 #1

   Craig is Lege

   

   1. The problem statement, all variables and given/known data
   
   A curve is traced by a point P (x,y) which moves such that its distance from the point A (-1,1) is three times its distance from the point B (2,-1). Determine the equation.
   
   2. Relevant equations
   
   
   
   3. The attempt at a solution
   
   used distance formulas to find A is the squareroot of 13 away from B.
   
   how do i find the curve

    

   Craig is Lege, Aug 30, 2008
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3. Aug 30, 2008 #2

   Hitman2-2

   

   I would try to translate what the problem says in words into equations.
   
   You're told that the distance from point A to point P is always 3 times the distance from point B to point P.
   
   So it seems to me that the way to proceed is to write down an expression for the distance from A to P and set it equal to the expression for the distance from B to P multiplied by 3.

    

   Hitman2-2, Aug 30, 2008
4. Aug 30, 2008 #3

   symbolipoint

   

   Homework Helper

   Education Advisor

   Gold Member

   You should try applying the distance formula for the problem as you described it. That should help you to start.

    

   symbolipoint, Aug 30, 2008

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