OG详解-OG1 数学2 Q17

Choice C is correct. Because the value of the investment increases each year, the function that best modelshow the value of the investment changes over time is an increasing function. It′s given that each year, the value of the investment increases by 0.49% of its value the previous year. Since the value of the investment changes by a fixed percentage each year, the function that best modelshow the value of the investment changes overtime is an exponential function. Therefore, the function that best modelshow the value of the investment changes overtime is an increasing exponential function.
Choice A is incorrect and may result from conceptual errors. Choice B is incorrect and may result from conceptual errors. Choice D is incorrect and may result from conceptual errors.