Chapter 2 - Limits - 2.3 Techniques for Computing Limits - 2.3 Exercises - Page 76: 13

$\lim\limits_{x \to -9}{(5x)}=-45$

$lets$ $choose$ $f(x)=5x$ $\lim\limits_{x \to -9}{(5x)}=\lim\limits_{x \to -9}{f(x)}$ when $f(x)=5x$ $\lim\limits_{x \to -9}{f(x)}=f(-9)=5\times-9=-45$ Therefore $\lim\limits_{x \to -9}{(5x)}=-45$