3. a) Draw a function, f(x) where each of the following-are true: \text { - } \lim _{x \rightarrow 2^{-}} f(x)=\lim _{x \rightarrow 2^{+}} f(x) \text { - } \lim

_{x \rightarrow 2} f(x) \neq f(2) \text { - } \lim _{x \rightarrow-\infty} f(x)=-1 \text { (from above) } \text { - Domain }=\{x \in R / x \neq-4\} b) What type of discontinuity exists at x = -4 on your graph.