Math  /  Data

QuestionWorldwide cell phone sales data for 2009 and 2010 shows prices at \$163 (2009) and \$153 (2010).
(a) Demand equation: q(p)=39p+6,472q(p)=-39p+6,472. Predict sales at \$156. Round to nearest million.
(b) Sales decrease by 39 million units for each \$1 price increase.

Studdy Solution
The statement "For every $1 increase in price, sales of cell phones decrease by39 million units." is derived from the slope of the demand equation. The slope is -39, which means for every unit increase in price, the sales decrease by39 million units.

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