hi, i missed a lecture on this topic and i am really lost...there is a question that asks to write a function in the piecewise-defined form. i have no idea what that means and its not in the textbook of the course...looked everywhere online and can't find anything on it....(adsbygoogle = window.adsbygoogle || []).push({});

they give the function in the form of [tex]f(x)=x(1-x)H(x-1)+(4x-x^2-4)H(x-2)[/tex]

have no idea how to proceed...dont understand what H is doing in there...can someone provide some explanation and a little insight into this topic...would be appreciated.

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# Piecewise-defined functions

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