A firm's long-run production function is = 2+5 where denotes the amount of output produced, L denotes the units of labour hired, and K denotes the units of capital hired. Suppose also that the wage rate per unit of labour is $10 and the rental rate per unit of capital is $20. ii. Diagrammatically represent the firm's chosen input combination carefully using an isoquant and an isocost line while keeping labour (L) on the horizontal axis. Explain your work.