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Draw graphs of each of these functions.

1. $f(x) =$ $\left \lceil 3x-2 \right \rceil$
2. $f(x) =$ $\left \lceil 0.2x \right \rceil$
3. $f(x) =$ $\left \lfloor -1/x \right \rfloor$
4. $f(x) =$ $\left \lfloor x^2 \right \rfloor$
5. $f(x) =$ $\left \lceil x/2 \right \rceil\left \lfloor x/2 \right \rfloor$
6. $f(x) =$ $\left \lfloor x/2 \right \rfloor + \left \lceil x/2 \right \rceil$
7. $f(x) =$ $\left \lfloor 2\left \lceil x/2 \right \rceil +1/2\right \rfloor$
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