Refer to the information in 17-34. Calculate the estimated total cost when the measured quality characteristic, x

Question:

Refer to the information in 17-34. Calculate the estimated total cost when the measured quality characteristic, x (e.g., inches, pounds, units), is 78.
In 17-34, Solidtronic, Inc., an OEM manufacturer, has a product specification of 75 + / – 5. The cost for warranty services is estimated as $500 per unit. What is the value of k, the cost coefficient, in the Taguchi loss function?