Set 10: Exponential Functions

Choice B is correct. Choice B is the correct answer. Square 1.1 first. 1. Exponent: $(1.1)^2 = 1.21$. 2. Multiply: $200\times 1.21 = 242$. Strategic Tip: $11^2 = 121$, so $1.1^2 = 1.21$. Choice A is incorrect because it represents 1 year ($200\times 1.1$). Choice D is incorrect because it approximates $200+ 20 + 20$.