## Calculus with Applications (10th Edition)

C$(x)=2.25x+10$
In a cost function of the form $C(x)=mx+b$, $m$ represents the marginal cost and $b$ represents the fixed cost. Here, b= $\$ 10$(fixed cost) and m=$\$2.25$ (the cost per hour). Let $x=$ number of hours, and C$(x)=$ cost of renting a snowboard for $x$ hours. C$(x)=$ ( cost per hour)(number of hours)+fixed cost C$(x)=2.25x+10$