Suppose the cost C of removing p percent of the particulate pollution from the exhaust gases at an industrial site is given by 
. Because p is the percent particulate pollution, we know 
. Use the restriction on p and experiment with a C-range to obtain
an accurate graph of the equation. Determine the p-intercept and explain its meaning.
?
A. The p-intercept is (0,0) , meaning that it costs nothing to remove all of the particulate pollution.
B. The p-intercept is (0,81), meaning that there is a cost of $81 before the removal of the particulate pollution begins.
C. There is no p-intercept, which means that it is impossible to remove all of the particulate pollution.
D. The p-intercept is (0,0), meaning that it costs nothing to remove none of the particulate pollution.
E. The p-intercept is (0, -81), meaning that there is a negative cost of $81 before the removal of the particulate pollution begins.
Answer: D
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