Math Problem Statement
The production cost ($C) of a necklace is given by C= 2x²- 40x + 300,where x is the daily number of necklaces produced. Find the minimum production cost of a necklace and the corresponding daily number of necklaces produced.
Solution
The production cost represents a quadratic function. Since the coefficient of is positive (2), the parabola opens upwards, meaning it has a minimum point.
To find the minimum production cost, we need to determine the vertex of the parabola. For a quadratic function in the form , the x-coordinate of the vertex is given by:
In this case:
Substituting into the vertex formula:
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Math Problem Analysis
Mathematical Concepts
Algebra
Quadratic Functions
Optimization
Formulas
Vertex formula: x = -b / 2a
Quadratic equation: ax^2 + bx + c = 0
Theorems
Vertex of a Parabola
Suitable Grade Level
Grades 9-10