SOLUTION: The figure below shows how the price of Amazon's Kindle has decreased over time. The green line is a trend line. (You can check that the hash marks on the horizontal axis are one-m
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Question 1118554: The figure below shows how the price of Amazon's Kindle has decreased over time. The green line is a trend line. (You can check that the hash marks on the horizontal axis are one-month intervals.)
The trend line estimates that the price was $432 in November 2007 and $80 in September 2011. (That is an interval of 46 months.) Find the formula for the price, in dollars, as a linear function of the time t in months since November 2007. (Round numerical values to two decimal places.) Found 2 solutions by josgarithmetic, Shin123:Answer by josgarithmetic(39617) (Show Source):
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The figure below shows how the price of Amazon's Kindle has decreased over time. The green line is a trend line. (You can check that the hash marks on the horizontal axis are one-month intervals.)
The trend line estimates that the price was $432 in November 2007 and $80 in September 2011. (That is an interval of 46 months.) Find the formula for the price, in dollars, as a linear function of the time t in months since November 2007. (Round numerical values to two decimal places.)
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