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.
Copier Service A technician runs a copying service in his home. He paid $3500 for the copier and a lifetime service contract. Each sheet of paper costs $0.01, and he gets paid $0.05 per copy. Let x be the number of copies he makes.
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