At a minimum of a nonlinear function, the first derivative is equal to zero, and the second derivative is positive.

Name: At a minimum of a nonlinear function, the first derivative is equal to zero, and the second derivative is positive.
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Quizplus · Accepted Answer

This statement is true as a minimum point on a nonlinear function is where the slope (or first derivative) is zero and the function is concave up (or the second derivative is positive).

At a Minimum of a Nonlinear Function, the First Derivative