A vertical asymptote is similar to a horizontal asymptote but differs in how to find what it is. Vertical asymptotes are a range of numbers that cannot be used in the function. Unlike a hole a graph will always have a vertical asymptote.
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On the other hand, a hole is literally a "hole" in the graph, which is a point where the function has no value. Is it just one point on the graph, opposed to an entire line. A hole is made when something is factored from the factored equations.
e.g

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