A
B
C
D
Explanation
Correct answer: B.
Choice B is correct. It's given that the function is defined by . Substituting for in the given function yields , which is equivalent to , or . Therefore, the value of is .
Desmos solution:
Enter in Desmos:
Reviewed and rewritten by CookSAT
Why the other choices are wrong
Choice A
Choice A is incorrect and may result from conceptual or calculation errors.
Choice C
Choice C is incorrect. This is the value of for the function , not .
Choice D
Choice D is incorrect. This is the value of for the function , not .