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Precalculus Mathematics Homework Help
Algebra word problem difficulty defining function
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[QUOTE="SteamKing, post: 5481522, member: 301881"] Another way to look at this problem is to define x as the number of dollars difference in the price of a single phone, above or below the base price of $302. You know that the change in weekly sales is 4 phones less than the base sales of 450 phones for each dollar increase in the price. Therefore, Number_of_Sales = 450 - 4 ⋅ x Now, if no phones are sold, you set Number_of_Sales = 0 in the formula above, and obviously sales income will equal zero. You can calculate the amount of price increase x beyond which no phones will sell. All that's left after that is to see if 302 + x < 522. [/QUOTE]
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Algebra word problem difficulty defining function
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