For the function f, if for all values of x, what is the value of ?
A
B
C
D
Correct answer: B
Explanation
Choice B is correct. It’s given that for all values of x. If , then will equal . Dividing both sides of by 3 gives . Therefore, substituting 2 for x in the given equation yields , which can be rewritten as .
Choice A is incorrect. This is the value of the constant in the given equation for f. Choice C is incorrect and may result from substituting , rather than , into the given equation. Choice D is incorrect. This is the value of x that yields for the left-hand side of the given equation; it’s not the value of .
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id cb_question_bank:d67879bc-b16b-4cf3-88d4-9d7ff51bccfe · question 023c0a8d · IBN 021098-DC
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