An employee’s monthly productivity M, in number of units produced, is found to be a function of the number t of years of service. For a certainproduct, a productivity function is shown below. Find the maximum productivity and the year in which it is achieved.
Upper M left parenthesis t right parenthesis M ( t ) equals = negative 4 t squared plus 224 t plus 100 ? 4 t 2 + 2 2 4 t + 1 0 0 , 0 less than or equals t less than or equals 40 0 ? t ? 4 0
The maximum productivity is achieved in year nothing .
The maximum productivity is nothing units.