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minimum cost of producing stabilizer bars

A company uses the formula C(x) = 0.02x^2 - 3.4x + 150 to model the unit cost in dollars for producing x stabilizer bars. For what number of bars is the unit cost at its minimum? What is the unit cost at that level of production?

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Please see the attached file for detailed solution.

The cost function is a parabola. And ...

Solution Summary

The solution shows how to find the vertex of a parabolic cost equation in detail.