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Y = aK, a >0 Find slope

  1. Feb 3, 2014 #1

    939

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    1. The problem statement, all variables and given/known data

    y = aK, a >0... Find y' and y'' and graph.

    2. Relevant equations

    y = aK, a > 0

    3. The attempt at a solution

    Having a constant "a" there and then a > 0 confuses me for graphing.
    y' = a
    y" = 0

    As for graphing, y' = a, a > 0... Perhaps just a straight horizontal line after a = 0?
     
  2. jcsd
  3. Feb 3, 2014 #2
    is y= y(k)?
     
  4. Feb 3, 2014 #3

    HallsofIvy

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    Staff Emeritus
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    Assuming you mean K to be the independent variable, yes, these are correct.

    I don't know what you mean by "after a= 0". a is a constant and you are told that it is positive. It is never 0. You may be confusing "a" with the independent variable, K.

    (I suspect this problem would have been must easier if they had just named the independent variable "x" and said "y= ax, a> 0", as is usual.)
     
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