The following table shows worldwide sales of smartphones and their average selling prices in 2013 and 2017 Year: 2013   2017             335   265            1010  1710 Use the data to obtain a linear demand function for smartphones, and use your demand equation to predict sales if the price is raised to $385. b. Fill in the blanks: For every ____ increase in price, sales of smartphones decrease by ___ units.

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The following table shows worldwide sales of smartphones and their average selling prices in 2013 and 2017

Year: 2013   2017 

           335   265

           1010  1710

Use the data to obtain a linear demand function for smartphones, and use your demand equation to predict sales if the price is raised to $385.

b. Fill in the blanks: For every ____ increase in price, sales of smartphones decrease by ___ units.

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