A metal refining plant emits sulfur dioxide into the air and has decided to install air scrubbers to reduce the amount of pollution. Each scrubber costs $180,000 and the Environmental Protection Agency (EPA) fines the plant $5,000 for every part of pollution emitted per million.

$ \begin{array}{ll}\text { Number of air } & \text { Amount of pollution } \
\text { scrubbers } & \text { (parts per million) }\0 & 150 \ 1 & 100 \ 2 & 60 \ 3 & 30 \ 4 & 10 \ 5 & 0\end{array} $
-How many air scrubbers should the plant install in order to minimize the total cost of pollution?

Question

A metal refining plant emits sulfur dioxide into the air and has decided to install air scrubbers to reduce the amount of pollution. Each scrubber costs $180,000 and the Environmental Protection Agency (EPA) fines the plant $5,000 for every part of pollution emitted per million.

$ \begin{array}{ll}\text { Number of air } & \text { Amount of pollution } \
\text { scrubbers } & \text { (parts per million) }\0 & 150 \ 1 & 100 \ 2 & 60 \ 3 & 30 \ 4 & 10 \ 5 & 0\end{array} $
-How many air scrubbers should the plant install in order to minimize the total cost of pollution?

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The Answer of  
A metal refining plant emits sulfur dioxide into the air and has decided to install air scrubbers to reduce the amount of pollution. Each scrubber costs $180,000 and the Environmental Protection Agency (EPA) fines the plant $5,000 for every part of pollution emitted per million.

$ \begin{array}{ll}\text { Number of air } & \text { Amount of pollution } \
\text { scrubbers } & \text { (parts per million) }\0 & 150 \ 1 & 100 \ 2 & 60 \ 3 & 30 \ 4 & 10 \ 5 & 0\end{array} $
-How many air scrubbers should the plant install in order to minimize the total cost of pollution?

A Metal Refining Plant Emits Sulfur Dioxide into the Air