C(x) = 0.5x² - 320x + 60,085 where C is the unit cost and x is the number of cars made. Depending on the value of x, C also varies. The higher the value of x, the higher the value of C will be.
To calculate the minimum unit cost, we must calculate C(x) when x is of minimum value. The minimum value of x will be 1. So we substitute x = 1 in the given equation C(x) to calculate the minimum unit cost.
