# Chapter 2 - Limits - 2.7 Limits at Infinity - Preliminary Questions - Page 82: 1

(a) correct. (d) correct. The others are not correct.

#### Work Step by Step

(a) correct. Since the vertical asymptote $x=a$ is determined by $\lim _{x \rightarrow a} g(x)=\infty$. (d) correct. Since the horizontal asymptote $y=L$ is determined by $\lim _{x \rightarrow \infty} f(x)=L$.

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