SOLUTION: The profit, P earned by a small business each year can be modeled to fit the polynomial function P(y)=10y^3-50y^2+20y+100,000, where y is the number of years since 1990. Did the co

Algebra ->  Finance -> SOLUTION: The profit, P earned by a small business each year can be modeled to fit the polynomial function P(y)=10y^3-50y^2+20y+100,000, where y is the number of years since 1990. Did the co      Log On


   



Question 1058748: The profit, P earned by a small business each year can be modeled to fit the polynomial function P(y)=10y^3-50y^2+20y+100,000, where y is the number of years since 1990. Did the company's profits increase or decrease in 1995 compared to 1994?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Is +P%285%29+-+P%284%29+ positive or negative?
+P%285%29+=+10%2A5%5E3+-+50%2A5%5E2+%2B+20%2A5+%2B+100000+
+P%285%29+=+1250+-+1250++%2B+100+%2B+100000+
+P%285%29+=+100100+
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+P%284%29+=+10%2A4%5E3+-+50%2A4%5E2+%2B+20%2A4+%2B+100000+
+P%284%29++=+640+-+800+%2B+80+%2B+100000+
+P%284%29+=+-80+%2B+100000+
+P%284%29+=+99200+
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+100100+-+99200+=+900+
+P%285%29+-+P%284%29+ is positive, so profits
increased from 1994 to 1995
check my math