The function f is defined by f ( x ) = 4 + x . What is the value of

Question

The function f is defined by f ( x ) = 4 + x . What is the value of f 144 ?

Accepted Answer

Choice B is correct. The value of f 144 is the value of f x when x = 144 . It's given that the function f is defined by f x = 4 + x . Substituting 144 for x in this equation yields f 144 = 4 + 144 . Since the positive square root of 144 is 12 , it follows that this equation can be rewritten as f 144 = 4 + 12 , or f 144 = 16 . Therefore, the value of f 144 is 16 . Choice A is incorrect and may result from conceptual or calculation errors. Choice C is incorrect. This is the value of f 1,296 , not f 144 . Choice D is incorrect. This is the value of f 5,184 , not f 144 .

Question a31258