c. x = 2
Penjelasan dengan langkah-langkah:
y = -x² + 4x - 7
a = -1, b = 4, c = -7
sumbu simetri ya adalah
x = -b/2a
= -4/2.(-1)
= -4/(-2)
= 2
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c. x = 2
Penjelasan dengan langkah-langkah:
y = -x² + 4x - 7
a = -1, b = 4, c = -7
sumbu simetri ya adalah
x = -b/2a
= -4/2.(-1)
= -4/(-2)
= 2