In nonlinear models, the expected change in the dependent variable for a change in one of the explanatory variables is given by A)△Y = f(X₁ + X₁, X₂,... X_k). B)△Y = f(X₁ + △X₁, X₂ + △X₂,..., X_k+ △X_k)- f(X₁, X₂,...X_k). C)△Y = f(X₁ + △X₁, X₂,..., X_k)- f(X₁, X₂,...X_k). D)△Y = f(X₁ + X₁, X₂,..., X_k)- f(X₁, X₂,...X_k).

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In nonlinear models, the expected change in the dependent variable due to a change in one explanatory variable is calculated by evaluating the function at the new value of the variable and subtracting the function evaluated at the original value.

In Nonlinear Models, the Expected Change in the Dependent Variable