PENJELASAN
RUMUS X :
x = -b/2a
= -4/(2*(-2))
= -4/(-4)
= 1
Keterangan :
y = -2x² + 4x - 1
a = -2
b = 4
c= 1
JADI persamaan sumbu simetri grafik fungsi kuadrat y = -2x² + 4x - 1 adalah x = 1
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Verified answer
PENJELASAN
RUMUS X :
x = -b/2a
= -4/(2*(-2))
= -4/(-4)
= 1
Keterangan :
y = -2x² + 4x - 1
a = -2
b = 4
c= 1
JADI persamaan sumbu simetri grafik fungsi kuadrat y = -2x² + 4x - 1 adalah x = 1