question 1 of 10\nlim_{x\\to4}\\frac{x - 4}{4 - x}=\n© bfw publishers\n-4\n-1\n0\ndoes not exist.

Explanation:

Step1: Rewrite the function

We can rewrite $\frac{x - 4}{4 - x}$ as $\frac{x - 4}{-(x - 4)}$.

Step2: Simplify the function

For $x\neq4$, $\frac{x - 4}{-(x - 4)}=- 1$.

Step3: Find the limit

$\lim_{x\rightarrow4}\frac{x - 4}{4 - x}=\lim_{x\rightarrow4}-1=-1$.

Answer:

-1