The function f(x)=−4x2+18x+16 models the predicted sales of a hat after x price increases. Use the table showing actual and predicted sales to find the residuals for the model.

Question

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Answer 1

You didn't provide the table, but it seems to contain actual sales and predicted sales for given values of x (price increases). The predicted sales are computed from the f(x) model given in the problem statement. If they aren't in the table, you can compute them for each value of x using the f(x) model. For each value of x, the residual is just the actual sales minus the predicted sales as computed by the f(x) model.

Residual = Actual Sales - Predicted Sales