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- Thread starter calculus123
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[edit] just noticed that in b and c, the limits are as x approaches -2, whereas in d and e, x approaches 2.

The first one that looks wrong is b. Is that the limit as x approaches -2 from the positive side? If so, the answer is not 1. To answer this question, ignore everything to the left of x = -2, and ignore what happens at x = -2 itself. Focus only on what the graph is doing as x approaches -2 from the right side. What number is the graph approaching?

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B and C are -2, whereas D and E are +2. Going blind looking at it.

- #4

vela

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\begin{align*}

\lim_{x \to -3} f(x) \\

\lim_{x \to -2^+} f(x) \\

\lim_{x \to -2^-} f(x) \\

\lim_{x \to 2^+} f(x) \\

\lim_{x \to 2^-} f(x) \\

\lim_{x \to 4^-} f(x) \\

\lim_{x \to 4^+} f(x) \\

\lim_{x \to 6^+} f(x)

\end{align*}

- #5

vela

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Explain how you arrived at your answers, so we can see where you're going wrong.

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