Penjelasan dengan langkah-langkah:
41] f(x) = 0
x² + 5x - 14 = 0
(x + 7) . (x - 2) = 0
x + 7 = 0
x = -7
x - 2 = 0
x = 2
Jawabannya C
42] f(x) = x² + 6x + 8
a = 1; b = 6; c = 8
x = -b/(2a)
x = -6/(2 . 1)
x = -3
f(-3) = (-3)² + 6 . (-3) + 8
f(-3) = 9 - 18 + 8
f(-3) = -1
Koordinat titik balik = (-3, -1)
Jawabannya B
Kode Kategorisasi : 10.2.5
Kelas 10
Pelajaran 2 - Matematika
Bab 5 - Persamaan dan Fungsi Kuadrat
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Penjelasan dengan langkah-langkah:
41] f(x) = 0
x² + 5x - 14 = 0
(x + 7) . (x - 2) = 0
x + 7 = 0
x = -7
x - 2 = 0
x = 2
Jawabannya C
42] f(x) = x² + 6x + 8
a = 1; b = 6; c = 8
x = -b/(2a)
x = -6/(2 . 1)
x = -3
f(-3) = (-3)² + 6 . (-3) + 8
f(-3) = 9 - 18 + 8
f(-3) = -1
Koordinat titik balik = (-3, -1)
Jawabannya B
Kode Kategorisasi : 10.2.5
Kelas 10
Pelajaran 2 - Matematika
Bab 5 - Persamaan dan Fungsi Kuadrat