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Homework Help: What is a T-line and a N-line

  1. Dec 7, 2005 #1
    Here's the question:
    Given: f(x) = x*sqr(5-x)
    Find: the equasion (ax + by + c = 0) of T-line and N-line at x = -4

    What's an N-line?
  2. jcsd
  3. Dec 7, 2005 #2
    Never heard of those terms, but if T-line is the tangent then N-line is the normal line (the line perpendicular to the tangent at x=-4) I suppose.

    - Kamataat
  4. Dec 7, 2005 #3

    matt grime

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    Science Advisor
    Homework Helper

    it's your course, it's your definition, ask your teacher.
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