A
B
C
D
Explanation
Correct answer: C.
Choice C is correct. The value of is found by evaluating the expression when . Substituting for in the given equation yields . Simplifying in the equation results in . Evaluating the right-hand side of the equation yields . Therefore, 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 and may result from evaluating the expression as .
Choice B
Choice B is incorrect and may result from evaluating the expression as .
Choice D
Choice D is incorrect and may result from evaluating the expression as .