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QUESTION
A manufacturer has learned that, by pricing a phone at $125, sales will reach 85 phones per week. Raising the price to $200 will cause the sales to...
A manufacturer has learned that, by pricing a phone at $125, sales will reach 85 phones per week. Raising the price to $200 will cause the sales to fall to 42 per week. Let y be the number of phones sold per week at the prices of x dollars each. Write a linear equation that relates the number of phones sold per week, y, to the price x.
