The cost of denim fabric is directly proportional to the amount that you buy. Let C(x)
Chapter 11, Problem 11.1.37(choose chapter or problem)
The cost of denim fabric is directly proportional to the amount that you buy. Let C(x) be the cost, in dollars, of x yards of denim fabric. (a) Write a formula for the cost, C(x), in terms of x. Your answer will contain a constant, k. (b) A particular type of denim costs $28.50 for 3 yards. Find k and rewrite the formula for C(x) using it. (c) Graph C(x). (d) How much does it cost to buy 5.5 yards of denim?
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