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Local minima $x=$ none (b) Find the following left- and right-hand limits at the vertical asymptote $x=-2$. $$\lim _{x \rightarrow-2^{-}} \frac{5 x^{2}}{x^{2}-4}=$$ $\square$ $$\lim _{x \rightarrow-2^{+}} \frac{5 x^{2}}{x^{2}-4}=$$ $\square$ Find the following left- and right-hand limits at the vertical asymptote $x=2$. $$\lim _{x \rightarrow 2^{-}} \frac{5 x^{2}}{x^{2}-4}-$$ ? $\square$ $$\lim _{x \rightarrow 2^{+}} \frac{5 x^{2}}{x^{2}-4}$$ $\square$ Find the following limits at infinity tg determine any horizontal asymptotes. $$\lim _{x \rightarrow-\infty} \frac{5 x^{2}}{x^{2}-4}=? \quad \forall \quad \lim _{x \rightarrow+\infty} \frac{5 x^{2}}{x^{2}-4}=?$$ ? (c) Calculate the second derivative of $f$. Find where $f$ is concave up, concave down, and has inflection points. $$f^{\prime \prime}(x)=$$ $\square$ Union of the intervals where $f(x)$ is concave up $\square$ Union of the intervals where $f(x)$ is concave down $\square$ Inflection points $x=$ $\square$ Jump to...