Growth of fish: Let w = w(t) denote the weight of a fish as a function of its age t. For the North Sea cod, the equation of change holds. Here w is measured in pounds and t in years. a. Explain what...

Growth of fish: Let w = w(t) denote the weight of a fish as a function of its age t. For the North Sea cod, the equation of change

holds. Here w is measured in pounds and t in years.

a. Explain what dw dt means in practical terms.

b. Make a graph of dw dt against w. Include weights up to 45 pounds.

c. What is the weight of the cod when it is growing at the greatest rate?

d. To what weight does the cod grow?