Evaluate the limit:
\[
\lim _{x \rightarrow 9} \frac{-8 x+72}{x^{2}-12 x+27}=
\]
Final Answer: The limit of the function as x approaches 9 is \(\boxed{-\frac{4}{3}}\).
Step 1 :The limit of a function as x approaches a certain value can be found by substituting the value of x into the function. However, in this case, if we substitute x=9 into the function, we get a 0/0 form which is indeterminate. Therefore, we need to simplify the function first. We can do this by factoring the numerator and the denominator.
Step 2 :Simplify the function to get \(-8/(x - 3)\).
Step 3 :Calculate the limit as x approaches 9, we find that the limit is -4/3.
Step 4 :Final Answer: The limit of the function as x approaches 9 is \(\boxed{-\frac{4}{3}}\).