Question 1166948
there is something wrong with your equation.
i graphed it as given and this is what i got.


<img src = "http://theo.x10hosting.com/2020/101003.jpg" >


the graph is telling me that that the minimum cost is negative.


this should not be.


if i changed the constant term from -15,930 to +15,930, then i got an answer that makes more sense.


the graph of that is shown below:


<img src = "http://theo.x10hosting.com/2020/101004.jpg" >


i'm not saying that's the problem with your equation, but that change does make the equation feasible.


check your equation to make sure that you copied it down correctly.