Kunci Jawaban Matematika Kelas 9 Halaman 87 dan 88 Isi Tabel dan Menggambar Grafik Fungsi Kuadrat

x = -1
y = (-1)⊃2; + 2(-1)
y = 3

(x,y) = (-1,3)

x = 0
y = (0)⊃2; + 2(0)
y = 0

(x,y) = (0,0)

x = 1
y = (1)⊃2; + 2(1)
y = -1

(x,y) = (1,-1)

x = 2
y = (2)⊃2; + 2(2)
y = 8

(x,y) = (2,8)

x = 3
y = (3)⊃2; + 2(3)
y = 15

(x,y) = (3,15)

Tabel B, diketahui y = x⊃2; - 2x

x = -2
y = (-2)⊃2; - 2(-2)
y = 8

(x,y) = (-2,8)

x = -1
y = (-1)⊃2; - 2(-1)
y = 1

(x,y) = (-1,1)