<PRE><B>Question 1031876</B>
 Each week, Ben deposits the same amount of money into his bank account. Today, he has 42$ in his bank account. Three weeks from now , he will have $210. How much money does Ben deposit each week?? 
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f(0) = 42 dollars
f(3) = 210 dollars
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slope = (210-42)/(3-0) = 168/3 = $56
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Note:: The slope is the amount savings will increase
when the number of weeks increases by one.
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Cheers,
Stan H.
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