SOLUTION: A company sells 6.7 million cell phones per month at $100 a piece; when lowered to $80, they sold 10.2 million per month. How many phones can the company expect to sell per month a

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Question 292747: A company sells 6.7 million cell phones per month at $100 a piece; when lowered to $80, they sold 10.2 million per month. How many phones can the company expect to sell per month at a price of $75.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
Use (100,6.7) and (80,10.2) as two points - x and y's for a linear equation
Find the equation for the line. Then plug in 75 for x and get y.