Following is a piecewise defined function and its graph.
$\displaystyle f(x) = \begin{cases} %0[0] & \text{if } -4 \leq x %2[0] %1[1] \\%0[1]& \text{if } %1[1] %2[1] x %2[2] %1[2] \\%0[2]& \text{if } %1[2] %2[3] x \leq 4 \end{cases}$
   
   
   
   
   
$y = f(x)$
$f(%3[0]) = {}$
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$f(%3[1]) = {}$
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$f(%3[2]) = {}$
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$f(%3[3]) = {}$
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$f(%3[4]) = {}$
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$f(%3[5]) = {}$
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RANDOMIZE