Let \[f(x)=\left\{ \begin{align} & \frac{1}{2},\ if\ 0\le x\le \frac{1}{2} \\ & \frac{1}{3},\ if\ \frac{1}{2}

Let \[f(x)=\left\{ \begin{align} & \frac{1}{2},\ if\ 0\le x\le \fra

1.	Let \[f(x)=\left\{ \begin{align} & \frac{1}{2},\ if\ 0\le x\le \frac{1}{2} \\ & \frac{1}{3},\ if\ \frac{1}{2}
A.	A rational function
B.	A trigonometric function
C.	A step function
D.	An exponential function
Answer» D. An exponential function

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Let \[f(x)=\left\{ \begin{align} & \frac{1}{2},\ if\ 0\le x\le \frac{1}{2} \\ & \frac{1}{3},\ if\ \frac{1}{2}

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