已知函数f(x)的图象如下图所示:则f(x)的解析式是__________.

已知函数fx)的图象如下图所示:则fx)的解析式是__________.

答案

解析:∵fx)的图象由两条线段组成,

∴由一次函数解析式求法可得f(x)=

答案:fx)=

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