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Minimum length

  1. Nov 20, 2005 #1
    Sorry..i posted this same question in another wrong section. This is the right one..

    A line through the point (2,2) cuts the x- and y- axes at points A and B respectively. Find the Minimum length of the segment AB.

    Im really stuck on this problem. I know that minimum lengh is when f'>0.

    Could you guys give me a lift off here?

  2. jcsd
  3. Nov 20, 2005 #2


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    HINT: The distance between the two axial points is [itex]\sqrt {A^2 + B^2}[/itex] and equation of a line passing through the indicated point is [itex]y-2 = -\frac {B}{A} (x - 2)[/itex].
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