Bantu dong guys yang bener ya
Jawab:
grafik fungsi kuadrat
i. memotong sumbu x , di x =0, x = 4
f(x)= a (x -0)(x – 4)
f(x)= a(x)(x – 4)
ii. melalui titk (2, -4)
f(2) = – 4
a(2)(2-4)= – 4
a(-4) = -4
a= 1
persamaan fungsi f(x)= (x)(x- 4)
f(x) = x² – 4x