How is unearned income different from earned income?

MAT210 BriefCalculus ArizonaStateUniversity Lectureby:JayAbramson 11.2MarginalAnalysis Profit=RevenueCost Marginal=Derivative P(x)=R(x)-C(x) P’(x)=R’(x)-C’(x) P(x)=(price)x-C(x) C(10)=2000 Costtoproduce10itemsus$2000 C’(10)=5 11thitemis$5 C(11)-C(10)=5.50 Exactcostof11thitemis$5.50 Example1 C(x)=0.025x +8x+10 Costtoproducexitems Eachitemsellsfor 10-0.01x (price) a) Findthemarginalcostatx=10 C’(x)=0.05x+8 C’(10)=0.05(10)+8= $8.50 b) Findtheexactcostofthe11t