Final answer:
The rate of growth of the turtle population at t = 2 is 32 turtles per year, and at t = 6 it is 248 turtles per year. Ten years after conservation, the turtle population is projected to be 3,260 turtles.
Step-by-step explanation:
To find the rate of growth of the turtle population at t = 2 and t = 6, we need to calculate the first derivative of the given polynomial function N(t) = 2t3 + 3t2 − 4t + 1,000. The derivative N'(t) represents the rate of growth at any given time t.
First, we calculate the derivative:
N'(t) = d/dt(2t3 + 3t2 − 4t + 1,000)
N'(t) = 6t2 + 6t − 4
Then we plug in t = 2 to find the rate of growth at that time:
N'(2) = 6(2)2 + 6(2) − 4 = 24 + 12 − 4 = 32
So, the rate of growth when t = 2 is 32 turtles per year.
Similarly, we plug in t = 6:
N'(6) = 6(6)2 + 6(6) − 4 = 216 + 36 − 4 = 248
Therefore, the rate of growth when t = 6 is 248 turtles per year.
Lastly, to find the turtle population 10 years after conservation measures are implemented, we evaluate N(t) at t = 10:
N(10) = 2(10)3 + 3(10)2 − 4(10) + 1,000
N(10) = 2,000 + 300 − 40 + 1,000 = 3,260
The population is projected to be 3,260 turtles after 10 years.