jawab donk jan dikacangin..jawab sebisanya ajaa

f(x) = 7 - 6x - x²

• pembuat nol fungsi
7 - 6x - x² = 0
(7 + x)(1 - x) = 0
x = -7 atau x = 1 ✔

• persamaan sumbu simetri
x = -b/2a = -(-6)/(2 . (-1)) = 6/-2 = -3
x = -3 ✔

• Koordinat titik balik maks
x = -3
f(-3) = 7 - 6(-3) - (-3)²
y = 16

Koordinat titik balik = (-3,16) ✔

• daerah hasil
daerah asal : -8 ≤ x ≤ 2
f(x) = 7 - 6x - x²
f(-8) = -9
f(-3) = 16

f(-3) = 16
f(2) = -9

Daerah hasil : -9 ≤ x ≤ 16, x e R