Question

The cost of removing x percent of pollutants is expressed by the function 240x/100-x, where C is in thousands of dollars. Which conclusion can be derived from this statement? A. The cost of removing 40 percent of the pollutants is $120,000 B. The cost of removing 80 percent of the pollutants is $960,000 C. The vertical asymptote lies at x= 0 D. The vertical asymptote lies at x= 240

Answer 1

The correct answer is B) the cost of removing 80% of pollutants is $196,000.

Using the equation, we have
240(80)/(100-80) = 240(80)/20 = 196

Since this is in thousands of dollars, we have 196,000.

Using the equation, A is not correct; it would be 160,000.

The vertical asymptote would be at 100%.

B must be the correct answer.