Question: Let f(x) = |x|/x, for x 0. a. Sketch a graph of f on the interval [-2, 2]. b. Does lim x0 f(x) exist?

Let f(x) = |x|/x, for x ≠ 0.

a. Sketch a graph of f on the interval [-2, 2].

b. Does limx→0 f(x) exist? Explain your reasoning after first examining limx→0- f(x) and limx→0+ f(x).

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