A
B
C
D
Explanation
Correct answer: C.
Choice C is correct. Substituting for in gives . Since , the equation simplifies to . It follows that .
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 arithmetic errors.
Choice B
Choice B is incorrect and may result from arithmetic errors.
Choice D
Choice D is incorrect and may result from arithmetic errors.