Find the Appropriate Linear Cost or Revenue Function $\$ 1.00$ Plus 10 Cents Per Minute

Multiple Choice

Find the appropriate linear cost or revenue function.
-A cab company charges a base rate of $\$ 1.00$ plus 10 cents per minute. Let $C(x)$ be the cost in dollars of using the cab for $x$ minutes. Find the linear cost function.

A) $C(x) =1.00 x-0.10$
B) $C(x) =0.10 x-1.00$
C) $C(x) =1.00 x+0.10$
D) $C(x) =0.10 x+1.00$