Estimating Limits from Graphs and Tables Practice Test

Given the above graph of , what is $$\lim_{x\rightarrow 0}$f(x)$?

For the piecewise function:

$y=\left\{\begin{matrix} 1 \textup{, for }x> 0\\ 0 \textup{, for }x< 0\end{matrix}\right.$, find .