Jika g(x)=2x-5 dgn {x|-2<×<5,x€ bilangan bulat}, pasangan berurutan adalah

jawab

x ={-1, 0, 1, 2, 3, 4}
g(x) = 2x -5

pasang berurutan = {(x, g(x)}
g(x) = 2x - 5
x= -1 --> g(1) = -7 
x = 0 -->g(0) = - 5
x= 1 --> g(1) = -3
x= 2 --> g(2) = -1
x = 3 --> g(3) = 1
x= 4 --> g(4) = 3

(x, g(x)) = (-1,-7), (0, -5), (1, - 3), (2, -1), (3, 1), (4, 3)

Kelas 8 Matematika
Bab Himpunan

Domain = { -1, 0, 1, 2, 3, 4 }

g(-1) = 2 . (-1) - 5
g(-1) = -7
(-1, -7)

g(0) = 2 . 0 - 5
g(0) = -5
(0, -5)

g(1) = 2 . 1 - 5
g(1) = -3
(1, -3)

g(2) = 2 . 2 - 5
g(2) = -1
(2, -1)

g(3) = 2 . 3 - 5
g(3) = 1
(3, 1)

g(4) = 2 . 4 - 5
g(4) = 3
(4, 3)

Himpunan pasangan berurutan = { (-1, -7), (0, -5), (1, -3), (2, -1), (3, 1), (4, 3) }