QUESTION $7$

Use $f(x)=\frac{x-4}{x^2-9x+20}$ to find the following:

a$)\underset{x4}{lim}f(x)=$

b$)\underset{x5}{lim}f(x)=$

c$)$ Use limit notation $($show on your paper$)$ to find the horizontal asymptote of $f(x)*y=$

d$)$ Is $f(x)$ continuous at $x=5?$ Explain why or why not. $$

QUESTION $8$

Use a sign chart to solve the inequality.

$\frac{3x^2+12x}{(x-2{)}^2}0$