The number of fish in a lake can be modeled by the exponential regression equation y = 14.08 • 2.08x, where x represents the year. Which is the best prediction for the number of fish in year 6? Round your answer to the nearest whole number. A. 1140 B. 176 C. 81 D. 1758

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27-07-2017
Mathematics

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The number of fish in a lake can be modeled by the exponential regression equation y = 14.08 • 2.08x, where x represents the year. Which is the best prediction for the number of fish in year 6? Round your answer to the nearest whole number. A. 1140 B. 176 C. 81 D. 1758

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barnuts barnuts · Answer 1 · 2017-08-07T17:20:43+02:00

The given equation is confusing since you may not have correctly copy pasted the correct equation. But since given problem specifically stated that the equation is an exponential one, therefore I think the correct one must be in the form of:

y = 14.08 * 2.08^x

Since we are to look for the number of fish in year 6, therefore x must be equal to 6 (x = 6) and looking for y:

y = 14.08 * 2.08^6

y = 14.08 * 80.98041718

y = 1140.20

Therefore the number of fish in the lake in year 6 would be about 1140.

Answer: A. 1140