O POLYNOMIAL AND RATIONAL FUNCTIONS Mercede Word problem involving the maximum or minimum of a quadrati. 1/5 A vehicle factory manufactures cars. The unit cost C (the cost in dollars to make each car) depends on the number of cars made. If x cars are made, then the unit cost is given by the function C (x)=0.4x -64x+ 10,402. How many cars must be made to minimize the unit cost? Do not round your answer. Number of cars: I X ? Check