Write the Word or Phrase That Best Completes Each Statement $$f(x)=\frac{3.2 x}{100-x}$$

Essay

Write the word or phrase that best completes each statement or answers the question
-Suppose that a cost-benefit model is given by
$$f(x)=\frac{3.2 x}{100-x}$$
where $f(x)$ is the cost in thousands of dollars of removing $x$ percent of a given pollutant. What is the vertical asymptote of the graph of this function? What does this suggest about the possibility of removing all of the pollutant? Explain your reasoning.