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

Tabel D, diketahui y = -x² - 2x

x = -2
y = -(-2)² - 2(-2)
y = 0

(x,y) = (-2,0)

x = -1
y = -(-1)² - 2(-1)
y = 1

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

x = 0
y = -(0)² - 2(0)
y = 0

(x,y) = (0,0)

x = 1
y = -(1)² - 2(1)
y = -3

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

x = 2
y = -(2)² - 2(2)
y = -8