<PRE><B>Question 321056</B>
 If the profit from 500 customers is $1000 and the profit from 900 customers is $3000, what will the profit be for 1500 customers? 
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Find a linear equation that relates profit and # of customers.
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slope = (3000-1000)/(900-500) = 2000/400 = 5
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1000 = 5(500) + b
b = -1500
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Equation:
profit = 5(cust) - 1500
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what will the profit be for 1500 customers? 
profit = 5*1500-1500
profit = 4*1500 = $6000
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cheers,
Stan H.
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