A
B
C
D
Explanation
Correct answer: B.
Choice B is correct. Adding to each side of the given equation yields . Therefore, the equation correctly expresses in terms of and .
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 and may result from conceptual or calculation errors.
Choice D
Choice D is incorrect and may result from conceptual or calculation errors.