Q5) [Maximum mark: 14], ASL 5.2, ASL 5.3, ASL 5.7, ASL 2.4. A school club wanted to make hoodies to raise fund for a local children home. The total cost fin Swiss Franc (CHF) of producing x number of hoodies is modelled by f =0.2r3- 0.6x-+ 4.3x+ 300. (a) (i) Find f'. Sketch y = f' for OSx. ENE E Explain why if the total cost is minimized then no hoodie is produced. The average cost is g = (b) Find g'. (c) Find the number of hoodies that the club should produce to minimize the average cost. Give a reason for your answer. (d) Hence, find the total cost that the club pays to minimize the average cost