Slope of tp curve: mP- marginal Product a The marginal product of an input is the additional quantity of output that is produced by using one more unit of that input Marginal Change in quantity of output Change in quantity of product output generated by one of labor Change in quantity of labor additional unit of labor MPL=△Q/△LSlope of TP curve: MP - Marginal Product ◼ The marginal product of an input is the additional quantity of output that is produced by using one more unit of that input