Seorang tukang las membuat dua jenis sangkar burung hias, sangkar pertama memerlukan 2 m besi dan 4 m kawat, sedang kan sangkar jenis dua memerlukan 5 m besi dan 3 m kawat , bahan besi dan kawat yg tersedia berturut-turut adalah 70 m dan 84 m . Sangkar jenis 1 di jual dengan keuntungan Rp 15.000/buah dan jwnis dua adalah Rp 25.000/buah . Dari permasalahan di atas yg termasuk fungsi tujuan adalah

<p>misalkan&nbsp;</p><p>banyak sangkar jenis 1 = x&nbsp;</p><p>banyak sangkar jenis 2 = y</p><p>&nbsp;</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| Sangkar jenis 1 (x) | Sangkar jenis 2 &nbsp;(y) |</p><p>Besi &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;5 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; 70</p><p>Kawat &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 4 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;3 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| &nbsp; &nbsp; 84</p><p>Keuntungan &nbsp;| &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;15.000 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; | &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 25.00 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;|</p><p>&nbsp;</p><p>Maka, fungsi kendala:</p><p>2x + 5y ≤ 70</p><p>4x + 3y ≤ 84</p><p>x ≥ 0</p><p>y ≥ 0</p><p>&nbsp;</p><p>dan fungsi tujuan atau fungsi objektifnya adalah f(x,y) = 15.000x + 25.000y.</p>