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Verified answer
Bab Fungsi KuadratMatematika SMP Kelas VIII
y = a (x - x1) . (x - x2)
6 = a (0 + 3) . (0 - 1)
6 = a . 3 . (-1)
a = 6/(-3)
a = -2
y = a (x - x1) (x - x2)
y = (-2) (x + 3) (x - 1)
y = (-2) (x² + 2x - 3)
y = -2x² - 4x + 6
✩✩ D ✩✩