Gambarlah grafik fungsi kuadrat f(x) = x^2 - 2x - 5 tolong ya ... gangerti saya

y = x² - 2x - 5
mmtong sumbu x pd y = 0
x² - 2x - 5 = 0, sulit dg pmfktoran biasa
x² - 2x = 5
x² - 2x + (-1)² = 5 + (-1)²
(x - 1)² = 6
x - 1 = ±√6
x = 1 ± √6
mmotong pd ttk (1+√6, 0) atau (1-√6, 0)

mmtong sumb y pd x = 0 → y = -5
titik (0, -5)
umbu simtris → x = -b/(2a) = -(-2)/(2(1)) = 1
substiusi pd y
y = 1² - 2(1) - 5 = -6
titik balik (1, -6)

gbr dibawah...