How to solve

Problem $1.[6$ pts$]$ Use the provided graph of $f(x)$ to find the following limits$.$

a$)\underset{x{0}^{+}}{lim}f(x)=$ b$)\underset{x0}{lim}f(x)=$

c$)\underset{x-1}{lim}f(x)=$ d$)\underset{x1}{lim}f(x)=$

e$)\underset{x}{lim}f(x)=$ f$)\underset{x-}{lim}f(x)=$