A
B
C
D
Explanation
Correct answer: C.
Choice C is correct. Subtracting from both sides of the given equation yields . Dividing both sides by results in .
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 computational errors.
Choice B
Choice B is incorrect and may result from computational errors.
Choice D
Choice D is incorrect. This is the value of .