A company finds that there is a linear relationship
Chapter , Problem 1.3.28(choose chapter or problem)
A company finds that there is a linear relationship between the amount of money that it spends on advertising and the number of units it sells. If it spends no money on advertising, it sells 300 units. For each additional $5000 spent, an additional 20 units are sold. (a) If is the amount of money that the company spends on advertising, find a formula for , the number of units sold as a function of . (b) How many units does the firm sell if it spends $25,000 on advertising? $50,000? (c) How much advertising money must be spent to sell 700 units? (d) What is the slope of the line you found in part (a)? Give an interpretation of the slope that relates units sold and advertising costs.
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