Set 10: Exponential Functions (Intermediate)

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 $x=1$.