Set 2: Exponential Functions (Advanced)

Explanation

Answer: B

What is the initial value of $y = 4(2.5)^x$ ?

2.5

✓ Correct

Detailed Explanation

Choice B is correct. Choice B is the correct answer. The coefficient is the initial value. 1. Identify: $a=4$ . 2. Conclusion: Initial value is 4. Strategic Tip: Just look at the number in front. Choice A is incorrect because 2.5 is the base. Choice C is incorrect because $4\times 2.5 = 10$ is the value at $x=1$ .

Key Steps:

•

The correct answer is 4

Why others are wrong:

A: Choice A 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.

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