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Math Help - sketch a graph question

  1. #1
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    sketch a graph question

    Sketch a graph for a function f in each of the following cases
    f'(x) and f''(x)>0

    i dont get this question because i dont know what f is. by that i mean if f was an equation i think i would know what to do but it just says sketch f, what is f?
    thanks!
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  2. #2
    Senior Member MaxJasper's Avatar
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    Re: sketch a graph question

    f(x)=1/x
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  3. #3
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    Re: sketch a graph question

    Quote Originally Posted by narjsingh View Post
    Sketch a graph for a function f in each of the following cases
    f'(x) and f''(x)>0
    Draw any function which is increasing and concave up.
    e^x will work.
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  4. #4
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    Re: sketch a graph question

    Quote Originally Posted by MaxJasper View Post
    f(x)=1/x
    That function has no first nor second derivative at x=0.
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