Explain why the value of a parameter that minimizes the total squared vertical…

MATHEMATICS · Subjective · AP · Calculus AB · Analytical Applications of Differentiation · Analytical Applications of Differentiation

Problem

Explain why the value of a parameter that minimizes the total squared vertical distance between a model and a set of data points must satisfy that the first derivative of the total squared distance with respect to the parameter equals zero, provided the second derivative at that point is positive.

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