A
B
C
D
Explanation
Correct answer: D.
Choice D is correct. It's given that the result of increasing the quantity by is . It follows that , which is equivalent to , or . Dividing each side of this equation by yields . Therefore, the value of is .
Desmos solution:
Note: Enter the relationship as a regression; Desmos prints w=36.
Enter in Desmos:
Reviewed and rewritten by CookSAT
Why the other choices are wrong
Choice A
Choice A is incorrect. The result of increasing the quantity by is , not .
Choice B
Choice B is incorrect. The result of increasing the quantity by is , not .
Choice C
Choice C is incorrect. The result of increasing the quantity by is , not .