A
B
C
D
Explanation
Correct answer: B.
Choice B is correct. Combining like terms inside the parentheses of the given expression, , yields . Combining like terms in this resulting expression yields .
Desmos solution:
Note: Enter the relationship as a regression; Desmos prints a=13.
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.