The cost per hour of running an assembly line in a manufaturing plant is an equation of the number of items produced per hour. The cost of the function C = 0.3x^2 - 1.2x + 2 Where x is the number of items produced per hour in thousands and C is the cost per hour in thousands of dollars. Determine the minimum cost and the number of items that will be produced. Has to be solved by completing the square.