Graphical Reasoning In Exercises 29 and 30 ,use the graph of the function $f$ to decide whether the value of the given quantity exists. If it does, find it. If not, explain why

(a) $f(-2)$

(b) $\lim _{x \rightarrow-2} f(x)$

(c) $f(0)$

(d) $\lim _{x \rightarrow 0} f(x)$

(e) $f(2)$

(f) $\lim _{x \rightarrow 2} f(x)$

(g) $f(4)$

(h) $\lim _{x \rightarrow 4} f(x)$

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