If the total cost function for a factory manufacturing lamps is C(x)=25+10x Producing how many units will result in a minimum average cost per unit? (a) 0 (b)2 (c) 4 (d) 5 (e) 6 (b) (e) (d) (c) (a) Question 4 If the total cost function for a factory manufacturing lamps is C(x)=25+10x+x2. Find the minimum average cost (a) 0 (b) 5 (c) 10 (d) 15 (e) 20