OG详解-OG4 数学2 Q9

Choice D is correct. The value of f (0) is the value of f (x) when x = 0. Substituting 0 for x in the given function yields f (0)= 270(0.1)⁰ , or f (0)= 270(1), which is equivalent to f (0)= 270. Therefore, the value of f (0) is 270. Choice A is incorrect. This is the value of x, not f (x).
Choice B is incorrect and may result from conceptual or calculation errors. Choice C is incorrect. This is the value of f (1), not f (0).