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Verified answer
A. Titik potong sumbu x, y = 0-x² + 6x - 9 = 0
Faktorisasi
- (x - 3) (x - 3) = 0
x = 3
⇒ (3, 0)
b. Titik potong sumbu y, x = 0
-(0)² + 6(0) - 9
⇒ (0, -9)
c. Titik Ekstrim x,y
x = -b/2a
x = -(6)/2(-1)
x = 3
y = -(3)² + 6(3) - 9
y = -9 + 18 - 9
y = 0
⇒ Titik Ekstrim (3,0)
Gambarkan grafik melalui titik pada point a, b, dan c