Question

訪客

不好意思
有沒有人可以教我第2題

站和0

預算線為3 .x+選.),三3叫(20)+乃(45)   9人 了RE人
3Yv+2D"三60+45 =三105

*            9        x

將4 代入預算線可得其=15 之             l

                                    焉    3        急 2 冰入  V    s

、                       一Beforeen 2017 和4 2抽 1

人   0  n2017, Bruce spent his income on two goods,  and 品    辣和ns 2018
de price of good xz rose by 8% and the price CO

    
  
 

t he bou 由 mo
#     Bruce bought fhe same anmount of z as he bought im 2017/,  9         峙 作   只 呈
代罰   good y 和an he had bought in 2017.

遍, Sanormajl good.    K XY    XX  只: 人

“別當 is an imferior good                六                     8     汪
e                      XX
人 8an nmferior good ~   全     48        /- 1 23嘩2

0 Nofhing can be said about inferiority or superiority, since we don't know what
fappened fto income.

(0 Bruce 5 acting Trrationally,since the ITelative prices of xx and > did not
“2人

  
 

 

 

 

參考解析   店於 2017 年到 2018 年 與 均上漲

 

記

JM
J                      4                 人
人0

>解析[學生考三次期中考,可以放棄一次考最低分,再將其

 

 

 

 

 

 

 

兩次考試分數做平均 ,
三次考試分數為z, .無

 

出歇

Sarah 第一次考試考 6O 分,令第二次考試分數為 2

關肌tiieieuhre

97一

2  Joseph 2 4 fines as much of y as he consumes ot x (so he

always hasf/ 當==4xz》He will consume these goods in no other ratio. The prlce of

W      6,3 fmes.吉e prieeg 0f, 當  Joseph has an endowment Q+ 純  XX “S and 45  2
人 和

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