In Exercises,
(a) Express the cost C as a function of x, where x represents the number of items as described.
(b) Express the revenue R as a function of x.
(c) Determine analytically the value of x for which revenue equals cost.
(d) Graph y 1 = C(x) and y2 = R(x) on the same xy-axes and interpret the graphs.
Delivery Service A truck driver operates a delivery service. His start-up costs amounted to $2300. He estimates that it costs him (in terms of gasoline, wear and tear on his truck, etc.) $3.00 per delivery. He charges $5.50 per delivery. Let x represent the number of deliveries he
makes.
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