The vertical asymptote will occur when you have as this value does not exist. Hence you need to solve the equation
Ouch! They were supposed to have taught you about logarithms and their graphs before assigning conceptual questions on them!
You'll definitely need this topic once you're in calculus, so it would be a good idea to review what logarithms are, the rules for manipulating them, and how to graph log equations.
Have fun!