請各位高手解答線性規劃，感謝:Realtime－線上遊戲排行榜2013/2014,進擊的巨人線上看,candy crush saga外掛,正妹寫真三圍

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請各位高手解答線性規劃，感謝

Jun 5th 2014, 14:11

(1)設A小區x ha，B小區y ha

(2)列出條件式：0<=x<=40，0<=y<=50，20x+30y<=1800→2x+3y<=180
'<='是小於等於的意思，奇摩知識有夠爛，符號都變亂碼啦- -
(3)求當3x+4.2y有max值時，x,y之值圖我就只能用打的大概看看吧

(4)↑
90┼
80┼
70┼(15,50)
60●A......B(40,100/3)
50┼※───※─────────── y=50
40┼xxx〝x.│
30┼xxxxxx.│
20┼xxxxxx.│..〝
10┼xxxxxx.│........〝
─-┼-┼-┼-┼-┼-┼-┼-┼-┼●→
010 20 3040506070 90

條件式找兩個點代入畫圖，直線交於A,B兩點"※"

(5)
...(X,Y)..│(15,50)..│(40,100/3)
─────┼─────┼───────
3x+4.2y│..255千.│...250千...

故當A小區有15ha，B小區有50ha時，有最大利潤255千元

參考資料圖片打得醜抱歉～參考就好

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