Respuesta :

This is a step function:

The function f(x) that models the state income tax for a person whose taxable income is no more than $20,000 is:

[tex]f(x)=\begin{cases}0.03x;\text{ 0}\leq x<20,000 \\ \\ 0.03(20,000);\text{ }x\ge20,000\end{cases}[/tex]

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