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Sketch a graph of `f(x) = {(3x-2,"if",x le 0),(x^2-4,"if",0 lt x le 4),(x+8,"if",x gt 4):}` 

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   x  x    n  |   | (   ) π DNE
   x    (   ) π DNE
( ) ( ] [ ) [ ] —∞ DNE
< > or All Real Numbers DNE
log logn ln n  | | e 
sin cos tan arcsin arccos arctan  
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