Diketahui Fungsi f:x -> (2m + 1)x + 7. Jika f(-1) = -4, maka nilai f(m) sama dengan?
Matematika
RazerTechJK
Pertanyaan
Diketahui Fungsi f:x -> (2m + 1)x + 7. Jika f(-1) = -4, maka nilai f(m) sama dengan?
1 Jawaban
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1. Jawaban BSunShine
Materi : Fungsi
f(x) = (2m + 1)x + 7
f(-1) = -4
(2m + 1)x + 7 = -4
2m(-1) + (-1) + 7 = -4
-2m + 6 = -4
-2m = -4 - 6
-2m = -10
m = -10/-2
m = 5
Maka , f(m) = ....
f(5) = (2m + 1)x + 7
f(5) = (2m + 1)5 + 7
f(5) = 10m + 5 + 7
f(5) = 10m + 12
m = 5
f(5) = 10(5) + 12
f(5) = 50 + 12
f(5) = 62
Jadi , Jawabannya ialah 62