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Thread: how do you sketch f"(x) from f'(x)

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    how do you sketch f"(x) from f'(x)

    ^ ^
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    Re: how do you sketch f"(x) from f'(x)

    Quote Originally Posted by highshill View Post
    ^ ^
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    Re: how do you sketch f"(x) from f'(x)

    Quote Originally Posted by InteGrand View Post
    So do we follow the same principle :
    f'(x) to f(x)
    Find Stationary Point
    if line/curve is above the x-axis the gradient is positive and if the graph is below the gradient is negative
    Sketch according to slope

    So for f'(x) to f"(x)
    Same thing
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    Re: how do you sketch f"(x) from f'(x)

    Quote Originally Posted by highshill View Post
    So do we follow the same principle :
    f'(x) to f(x)
    Find Stationary Point
    if line/curve is above the x-axis the gradient is positive and if the graph is below the gradient is negative
    Sketch according to slope

    So for f'(x) to f"(x)
    Same thing
    Yeah its the same process as sketching f(x) to f'(x).

    - Stationary points become x-intercepts
    - Parts with a positive gradient are above the x axis
    - Parts with a negative gradient are below the x axis
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