Question: 4. [0/14.28 Points] DETAILS PREVIOUS ANSWERS CRAUDCOLALG5 3.3.EX.003. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The following table shows the price of Amazon's Kindle 2

4. [0/14.28 Points] DETAILS PREVIOUS ANSWERS CRAUDCOLALG5 3.3.EX.003. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The following table shows the price of Amazon's Kindle 2 e-book reader. It is adapted from data available on the web. I Here time is measured in months since February 2009, when the Kindle was launched. Time Price 0 $349 5 $299 10 $249 15 $199 (a) By calculating differences, show that these data can be modeled using a linear function. A table of differences shows a common difference of 30 X dollars every 5 months. (b) Find a linear formula that models these data. Be careful about the sign of the slope. (Let t be the time in months since February 2009, and let K be the price in dollars.) K = -10x + 349 X (c) What price does your formula from part (b) project for April 2012 (38 months after the Kindle was launched)? Note: The web data have been the basis for speculation that some day the Kindle will be free. dollar(s) Additional Materials eBook

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