Penjelasan dengan langkah-langkah:
28] f(x) = x² + 6x + 5
a = 1; b = 6; c = 5
Sumbu simetri
= x
= -b/(2a)
= -6/(2 . 1)
= -3
Jawabannya A
29] f(x) = (x - 1) . (x + 5)
f(x) = x² + 4x - 5
a = 1; b = 4; c = -5
= -4/(2 . 1)
= -2
Jawabannya C
Kode Kategorisasi : 10.2.5
Kelas 10
Pelajaran 2 - Matematika
Bab 5 - Persamaan dan Fungsi Kuadrat
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Penjelasan dengan langkah-langkah:
28] f(x) = x² + 6x + 5
a = 1; b = 6; c = 5
Sumbu simetri
= x
= -b/(2a)
= -6/(2 . 1)
= -3
Jawabannya A
29] f(x) = (x - 1) . (x + 5)
f(x) = x² + 4x - 5
a = 1; b = 4; c = -5
Sumbu simetri
= x
= -b/(2a)
= -4/(2 . 1)
= -2
Jawabannya C
Kode Kategorisasi : 10.2.5
Kelas 10
Pelajaran 2 - Matematika
Bab 5 - Persamaan dan Fungsi Kuadrat