f(x)=x kuadrat+5x+6,memotong sumbu x dan sumbu y di titik

Kelas 10 Matematika
Bab Fungsi Kuadrat

1] Memotong sumbu x, maka y = 0
f(x) = 0
x² + 5x + 6 = 0
(x + 2) (x + 3) = 0
x + 2 = 0
x = -2

x + 3 = 0
x = -3

(-2, 0) dan (-3, 0)

2] Memotong sumbu y, maka x = 0
f(0) = 0 + 0 + 6
f(0) = 6

(0, 6)