1. Let's clarify the problem: finding the asymptote of the top left corner of a graph usually means identifying the behavior of the function as $x \to -\infty$ or near a vertical boundary. 2. An asymptote is a line that the graph approaches but never touches. It can be vertical, horizontal, or oblique. 3. To find a vertical asymptote, look for values of $x$ where the function is undefined (like division by zero). 4. To find a horizontal asymptote, evaluate the limit of the function as $x \to \pm \infty$. 5. For the top left corner, we often consider $x \to -\infty$ and check if $y$ approaches a constant (horizontal asymptote) or if the function grows without bound. 6. If the function is rational, divide numerator and denominator by the highest power of $x$ to find limits at infinity. 7. If the function has an oblique asymptote, perform polynomial division to find the linear asymptote. 8. Summarizing, the asymptote at the top left corner is found by analyzing the limit of the function as $x \to -\infty$ and checking for undefined points near that region. If you provide the specific function or graph, I can show the exact steps.