Diketahui f(x) = mx + n Jika f(-1) = 2 dan f(2) = 11, nilai f(4) adalah .. Mohon bantuan nya ya;)
Matematika
Winda15
Pertanyaan
Diketahui f(x) = mx + n
Jika f(-1) = 2 dan f(2) = 11, nilai f(4) adalah .. Mohon bantuan nya ya;)
2 Jawaban
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1. Jawaban izzulaliya17
f (x) = mx + n
f (-1) = -1m + n = 2
f (2) = 2m + n = 11 _
-3m = -9
m = 3
2 . m + n = 11
2 . 3 + n = 11
6 + n = 11
n = 5
f (4) = 4 . m + n
= 4 . 3 + 5
= 12 + 5
= 17 -
2. Jawaban wikanagung12
f(-1)=2 f(x)=mx+n f(4)=mx+n
f(2)=11- f(2)=11 3.4+5
= -3m=-9 f(x)=3.2+n 17 jadi jawabnaya 17
m=-9 11=6+n
-3=3 11-6=n
5=n