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For the period 1971-2001, the number of y films produced in the world can be modeled by the function y=10x2−94x+3900 where x is the number of years since 1971. After how many years were 4200 films produced? Round your answer to the nearest tenth of a year.

11.9 years
8.7 years
10.6 years
2.5 years

User Bolaji
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1 Answer

5 votes

Answer:

11.9

Explanation:

For the period 1971-2001, the number of y films produced in the world can be modeled-example-1
User Plafratt
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