The vertical asymptote of the function $$ k(x) = \frac{x^2 -...

Question Analysis
This problem assesses the ability to identify vertical asymptotes in a rational function after factoring and simplifying.

Key Concept Explanation
Vertical asymptotes occur where the denominator is zero and the numerator is not zero. Factoring and simplifying can help identify these points.

Step-by-step Solution
1. Factor the numerator:
2. Simplify the function: