<PRE><B>Question 827449</B>
John wanted to develop a pattern for determining the profit he makes at his store. 
(vv This is suppose to be a chart) ---
Customers | Amount Spent
40 | $600
60 | $800
80 | ? 
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Using the two points:
slope = (800-600)/(60-40) = 200/20 = 10
intercept (0,200)
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(A)Determine the equation of John&#39;s profits: P(c) = 10c+200
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(B)Determine how much would be spent if he had 80 customers.
P(80) = 10*80+200 = 1000
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(C)Discuss what type of function this is:: linear
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(D)Determine the initial value and the rate
P(0) = 200 says he makes $200 when there are zero customers.
That information fits the linear model but is not realistic.
rate = slope = $10 per additional customer
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Cheers,
Stan H.
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