✔ 最佳答案
That is AL questions right?
the person attain his equilibrium when the price equal to the MUV
P=MUV
because if the P<MUV, the consumer buy one more good, then the consumer surplus would greater, if the P>MUU, the consumer buy less good, the CS would greater, so the equilibrium is P=MUV
the next question
based on the law of demand, the price and the Qd have the negative relationship. buy more at the lower price becuase if the price lower, P would lower than the MUV, thus based on the assumsion of person would maximise the wealth(CS), people would buy more at the lower price level.
hope that i can help you
please feel free to find me if you still have any/new questions.
參考: I got A grade in both HKCEE AND AL and doing a private tutor, so I know the syll a lot.