persamaan sumbu simetri grafik fungsi kuadrat f(x)=-2(x+3)²+4x+2
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x = -2
Penjelasan dengan langkah-langkah:
f(x)=-2(x+3)²+4x+2
= -2(x² + 6x + 9) + 4x + 2
= -2x² -12x - 18 + 4x + 2
= -2x² - 8x - 16
a = -2, b = -8, c = -16
sumbu simetrinya
x = -b/2.a = -(-8)/2.(-2) = 8/-4 = -2
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