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Titik potong:
Jika x = 0
Maka,
5(0) + y = -10
y = 10
(0,10)
Jika y = 0
Maka,
5x + y(0) = 10
5x = 10
x = 10/2
x = 5
(5,0)
b.) x + y < 5
Jika x = 0
Maka,
x(0) + y = -5
y = 5
(0,5)
Jika y = 0
Maka,
x + y(0) = 5
x = 5
(5,0)
c.) x > 0
Uji daerah himpunan penyelesaian (1,1):
a. 5x + y > 10
5(1) + 1 > 10
6 > 10
(Tidak memenuhi)
b. x + y < 5
1 + 1 < 5
2 < 5
(memenuhi)
c. x > 0
1 > 0
(memenuhi)