abis titik puncak parabola y = x2 + 6x - 4 adalah ... a. x = 1 b. x =2 c. x = 3 d. x = -2 e. x = -3 Pakai cara yaa

Kelas 10 Matematika
Bab Fungsi Kuadrat

y = x² + 6x - 4
a = 1; b = 6; c = -4

Sumbu simetri
= -b/2a
= -6/(2 . 1)
= -3

Maka, x = 3