Set 16: Exponential Functions

Choice A is correct. Choice A is the correct answer. Apply depreciation formula. 1. Retention: Loses 30%, keeps 70% = 0.70. 2. Formula: $V(t) = 1200(0.70)^t$ where $t = 3$. 3. Calculate: $V(3) = 1200(0.70)^3 = 1200(0.343) = 411.60$. Strategic Tip: Loses 30% means retention factor of 0.70. Choice B is incorrect because this assumes 70% loss, not retention. Choice C is incorrect because this is the value after 1 year. Choice D is incorrect because this is the value after a 50% loss total.