
PROGRAM LINEAR
Presentation
•
Mathematics
•
10th - 11th Grade
•
Hard
Apri Nur Yanti
FREE Resource
5 Slides • 0 Questions
1
PROGRAM LINEAR
Pertidaksamaan Linear Dua Variabel
Sistem Pertidaksamaan Linear Dua Variabel (SPtLDV)
Model Matematika dan Fungsi Objektif
Nilai Maksimum atau Nilai Minimum
2
Pertidaksamaan Linear Dua Variabel
Pertidaksamaan Linear Dua Variabel merupakan suatu kalimat terbuka matematika yang di dalamnya memuat dua variabel yang masing-masing berpangkat satu dengan tanda penghubung selain sama dengan ( = ), yaitu <, >, ≤ , atau ≥ .
Contoh :
2x + y > 6
4x - y ≤ 8
3
Penyelesaian pertidaksamaan linear dua variabel
Contoh : 2x + 3y > 6
Penyelesaian :
Buat garis 2x + 3y = 6, dengan mencari 2 titik, dengan cara sbb :
Jika x = 0 → y = 2 → titik yang terbentuk (0, 2)
Jika y = 0 → x = 3 → titik yang terbentuk (3, 0)
Atau dibuat tabel sebagai berikut :
x | y | (x, y) |
|---|---|---|
0 | 2 | (0, 2) |
3 | 0 | (3, 0) |
4
Gambar garis pada bidang cartesius dengan bantuan dua titik yang telah dicari, yaitu (0, 2) dan (3, 0). Karena 2x + 3y > 6, tanda pertidaksamaannya > tanpa =, maka garisnya putus-putus.
Selidiki titik (0, 0), apakah (0, 0) masuk daerah penyelesaian (DP) atau tidak.
5
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PROGRAM LINEAR
Pertidaksamaan Linear Dua Variabel
Sistem Pertidaksamaan Linear Dua Variabel (SPtLDV)
Model Matematika dan Fungsi Objektif
Nilai Maksimum atau Nilai Minimum
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