Kunci Jawaban Matematika Kelas 9 Halaman 87, Melengkapi Tabel Fungsi Kuadrat

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

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