Question: Biologists have proposed a cubic polynomial to model the length L of Alaskan rock fish at age A: where L is measured in inches and

Biologists have proposed a cubic polynomial to model the length L of Alaskan rock fish at age A:

0.372A? + 3.95A + 1.21 L= 0.0155A³


where L is measured in inches and A in years. Calculate

dL dA A=12


and interpret your answer.

0.372A? + 3.95A + 1.21 L= 0.0155A dL dA A=12

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