OG详解-OG5 数学2 Q3

Choice B is correct. It’s given that the function f is defined by f(x) = 4x-3. Substituting 10 for x in the given function yields f(10) = 4(10)-3, which is equivalent to f(10) = 40-3, or f(10) = 37. Therefore, the value of f(10) is 37.
Choice A is incorrect and may result from conceptual or calculation errors.  Choice C is incorrect. This is the value of f(10) for the function f(x) = 4x, not f(x) = 4x-3. Choice D is incorrect. This is the value of f(10) for the function f(x) = 4x+3, not f(x) = 4x-3.