7
Answer: ASet 12: Exponential Functions
Explanation
An island's invasive species population follows where is years. What is the initial population?
A.✓ Correct
100
B.
5,000
C.
50
D.
2,500
Detailed Explanation
Choice A is correct. Choice A is the correct answer. Evaluate the logistic function at . 1. Substitute: . 2. Simplify: . 3. Result: Initial population is 100. Strategic Tip: For logistic , initial value is . Choice B is incorrect because this is the carrying capacity, not initial population. Choice C is incorrect because this is (the denominator at ). Choice D is incorrect because this is half the carrying capacity.
Key Steps:
•
The correct answer is 100
Why others are wrong:
B: Choice B is incorrect and may result from a calculation error.
C: Choice C is incorrect and may result from a calculation error.
D: Choice D is incorrect and may result from a calculation error.
🎯 Keep Practicing!
Master all sections for your best SAT score