Suatu fungsi dinyatakan dengan rumus f(x) = mx + 8.Jika f(-3) = 1.Maka nilai 2f(-2) + 1 =.....
Matematika
opet13
Pertanyaan
Suatu fungsi dinyatakan dengan rumus f(x) = mx + 8.Jika f(-3) = 1.Maka nilai 2f(-2) + 1 =.....
1 Jawaban
-
1. Jawaban Anonyme
Bab Fungsi
Maetmatika SMP Kelas VIII
f(x) = mx + 8
f(-3) = 1
-3m + 8 = 1
-3m = 1 - 8
m = -7/-3
m = 7/3
f(x) = (7/3) x + 8
f(-2) = (7/3) . (-2) + 8
= -14/3 + 24/3
= 10/3
2 . f(-2) + 1 = 2 . (10/3) + 1
= 20/3 + 3/3
= 23/3