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Turning Point?

  1. Mar 1, 2009 #1
    I seem to have forgotten the rule to find a Turning point in a quadratic graph. Can anyone help me?
     
  2. jcsd
  3. Mar 2, 2009 #2

    Gib Z

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    The turning point on a quadratic graph is at the vertex, whose x-coordinate is given by [tex]x=\frac{-b}{2a}[/tex]
     
  4. Mar 2, 2009 #3

    HallsofIvy

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    That's assuming that the quadratic is y= ax2[/sub]+ bx+ c!

    You can find the turning point (vertex) by completing the square.
     
  5. Mar 2, 2009 #4
    Or by 2nd order differentiation.

    The Bob
     
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