he cost of producing x teddy bears per day at the Cuddly Companion Co is calculated by their marketing staff to be given by the formula C x 100 41x0 06x a Find the marginal cost function C x C x Use it to determine how fast the cost is going up in at a production level of 100 teddy bears per teddy bear Compare this with the exact cost of producing the 101st teddy bear in The cost is increasing at a rate of b Find the average cost function C and evaluate C 100 in C x C 100 What does the answer tell you per teddy bear The exact cost of producing the 101st teddy bear is per teddy bear Thus there is a difference of