What is ${\lim }_{x\to {\frac{\pi }{2}}^{-}}\tan x$, with $x$ in radians?

Use the graph of $f$. What is ${\lim }_{x\to -2}f(x)$?

Where are the vertical asymptotes of $f(x)=\frac{x-8}{x^2-5x-24}$?

Where are the vertical asymptotes of $f(x)=\frac{x-7}{x^2-6x-7}$?

Use the graph of $f$. Where are its vertical asymptotes?

Use the graph of $f$. What is ${\lim }_{x\to -6^{-}}f(x)$?

Use the graph of $f$. What is ${\lim }_{x\to 4}f(x)$?

What is ${\lim }_{x\to 0^{+}}\ln x$?

Evaluate ${\lim }_{x\to 4}\frac{4}{{\left(x-4\right)}^2}$.

Use the graph of $f$. What is ${\lim }_{x\to 5}f(x)$?

What is ${\lim }_{x\to \infty }\ln x$?

Use the graph of $f$. What is ${\lim }_{x\to 3^{+}}f(x)$?

Use the graph of $f$. Which pair of one-sided limits at $x=-4$ is correct?

Evaluate ${\lim }_{x\to 3^{+}}\frac{x+8}{x-3}$.

Use the graph of $f$. Which pair of one-sided limits at $x=1$ is correct?

For $f(x)=\frac{1}{{\left(x+3\right)}^2}$, which pair of one-sided limits at $x=-3$ is correct?

Evaluate ${\lim }_{x\to -3^{+}}\frac{x+9}{x+3}$.

Where are the vertical asymptotes of $f(x)=\frac{x-4}{x^2+4x-32}$?

A function satisfies ${\lim }_{x\to -3}f(x)=\infty$. Which statement is correct?

A function satisfies ${\lim }_{x\to 9}f(x)=\infty$. Which statement is correct?

Evaluate ${\lim }_{x\to -3}\frac{3}{{\left(x+3\right)}^3}$.

Evaluate ${\lim }_{x\to -3}\frac{-1}{{\left(x+3\right)}^2}$.

Use the graph of $f$. What is ${\lim }_{x\to -3^{-}}f(x)$?

Where are the vertical asymptotes of $f(x)=\frac{x+5}{x^2+2x-15}$?

A function satisfies ${\lim }_{x\to 4}f(x)=\infty$. Which statement is correct?

Where are the vertical asymptotes of $f(x)=\frac{x-6}{x^2+2x-48}$?

Where are the vertical asymptotes of $f(x)=\frac{x-7}{x^2-9x+14}$?

Use the graph of $f$. Where are its vertical asymptotes?

Evaluate ${\lim }_{x\to -1^{+}}\frac{x-8}{x+1}$.

Where are the vertical asymptotes of $f(x)=\frac{x-3}{x^2-x-6}$?