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Math Help - units of the derivative for a function

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    units of the derivative for a function

    For a function f(x), if f is in widgets and x is in blivets, what are the units of the derivative f ' (x), widgets per blivet or blivets per widget?

    Does anyone know what the question is asking? Please help
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    Re: units of the derivative for a function

    Surely you understand the concept of a rate being "The change in the Dependent Variable per unit change in the Independent Variable". Which is the DV and which is the IV?
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    Re: units of the derivative for a function

    someone could correct me but I see it as

    For a function f(x), if f is in widgets and x is in blivets, what are the units of the derivative f ' (x), widgets per blivet or blivets per widget?

    derivative of widgets (y) with respect to blivets(x) so it's \frac {dW}{dB} ...what do you think?
    Last edited by dokrbb; April 12th 2013 at 06:06 PM.
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    Re: units of the derivative for a function

    Quote Originally Posted by dokrbb View Post
    someone could correct me but I see it as

    For a function f(x), if f is in widgets and x is in blivets, what are the units of the derivative f ' (x), widgets per blivet or blivets per widget?

    derivative of widgets (y) with respect to blivets(x) so it's \frac {dW}{dB} ...what do you think?
    You don't understand the question. You are told that x is a number of blivets and f is a number of widgets. You are asked what units the derivative f' will have. You don't need to make any new functions...
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    Re: units of the derivative for a function

    Quote Originally Posted by Prove It View Post
    You don't understand the question. You are told that x is a number of blivets and f is a number of widgets. You are asked what units the derivative f' will have. You don't need to make any new functions...
    I didn't make any new functions (only used the wrong signs/parenthesis), I meant to show blivets and widgets as the equivalent of the values on the x and y axis,
    did I do it wrong?
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