To find the limit of the function as \( x \) approaches 6 from the left, we need to analyze the behavior of the function \( \frac{5}{x-6} \). As \( x \) gets closer to 6 from the left, \( x-6 \) becomes a very small negative number, causing the fraction to approach negative infinity.
Step 1: Analyze the Function Behavior
Consider the function \( f(x) = \frac{5}{x-6} \). We are interested in the behavior of this function as \( x \) approaches 6 from the left (\( x \to 6^{-} \)).
Step 2: Evaluate the Limit
As \( x \) approaches 6 from the left, the expression \( x-6 \) becomes a very small negative number. Consequently, the fraction \( \frac{5}{x-6} \) becomes very large in the negative direction.
Step 3: Determine the Limit
The limit of the function as \( x \) approaches 6 from the left is:
\[
\lim_{x \to 6^{-}} \frac{5}{x-6} = -\infty
\]