A
B
C
D
Explanation
Correct answer: D.
Choice D is correct. It's given that . Substituting for in this equation yields , or . Therefore, when , 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. This is the value of when .
Choice B
Choice B is incorrect. This is the value of when .
Choice C
Choice C is incorrect. This is the value of when .