Kunci Jawaban Matematika Kelas 9 Halaman 87, Persamaan Kuadrat

x = 0 -> y = (0)^2 - 2(0) = 0 | (x, y) = (0, 0)

x = 1 -> y = (1)^2 - 2(1) = 1 - 2 = -1 |(x, y) = (1, -1)

x = 2 -> y = (2)^2 - 2(2) = 4 - 4 = 0 | (x, y) = (2, 0)

x = 3 -> y = (3)^2 - 2(3) = 9 - 6 = 3 | (x, y) = (3, 3)

Baca juga: Kunci Jawaban Tema 4 Kelas 3 Halaman 16 17 K13, Istirahat Siang setelah Sekolah

3. Tabel Kiri Bawah

x = -2 -> y = -(-2)^2 + 2(-2) = 4 - 4 = 0 | (x, y) = (-2, 0)

x = -1 -> y = -(1)^2 + 2 (-1) = - 1 - 2 = -3 | (x, y) = (-1, -3)

x = 0 -> y = -(0)^2 + 2(0) = 0 | (x, y) = (0, 0)

x = 1 -> y = -(1)^2 + 2(1) = - 1 + 2 = 1 | (x, y) = (1, 1)

x = 2 -> y = -(2)^2 + 2(2) = - 4 + 4 = 0 | (x, y) = (2, 0)

x = 3 -> y = -(3)^2 + 2(3) = - 9 + 6 = -3 | (x, y) = (3, -3)

4. Tabel Kanan Bawah

x = -2 -> y = -(-2)^2 - 2(-2) = - 4 + 4 = 0 | (x, y) = (-2, 0)

x = -1 -> y = -(-1)^2 - 2(-1) = -1 + 2 = 1 | (x, y) = (-1,1)

x = 0 -> y = -(0)^2 - 2(0) = 0 | (x, y) = (0, 0)

x = 1 -> y = -(1)^2 - 2 (1) = -1 - 2 = -3 | (x, y) = (1, -3)

x = 2 -> y = -(2)^2 - 2(2) = -4 - 4 = -8 | (x, y) = (2, -8)

x = 3 -> y = -(3)^2 - 2(3) = -9 - 6 = -15 | (x, y) = (3, -15)

(Tribunnews.com/Galuh Widya Wardani)