Question

Persamaan grafik fungsi kuadrat pada gambar berikut adalah???

Answer 1

Verified answer

Bab Fungsi Kuadrat
Matematika SMP Kelas VIII

P (6, -8)
(x, y) = (0, 10)

y - yp = a (x - xp)²
10 - (-8) = a (0 - 6)²
10 + 8 = a (-6)²
18 = a . 36
a = 18/36
a = 1/2

y - yp = a (x - xp)²
y = (1/2) . (x - 6)² + yp
y = (1/2) . (x² - 12x + 36) - 8
y = 1/2 . x² - 6x + 18 - 8
y = 1/2 . x² - 6x + 10