A
B
C
D
Explanation
Correct answer: A.
Choice A is correct. It's given that . Multiplying both sides of this equation by yields , or .
Desmos solution:
Note: Use the listed values to compare the solved expression with choice A's expression; the two printed lists match.
Enter in Desmos:
Reviewed and rewritten by CookSAT
Why the other choices are wrong
Choice B
Choice B is incorrect and may result from dividing, instead of multiplying, the right-hand side of the equation by .
Choice C
Choice C is incorrect and may result from calculation errors.
Choice D
Choice D is incorrect and may result from calculation errors.