fungsi f(×)=2-7×dan f(k+2)=16 nilai
Matematika
andre882
Pertanyaan
fungsi f(×)=2-7×dan f(k+2)=16 nilai
1 Jawaban
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1. Jawaban nasriltanjung
f (x) = 2 -7x
f (k+2 ) = 16
2 - 7(k + 2) = 16
2 - 7k - 14 = 16
-7k - 12 = 16
-7k = 16 + 12
-7k = 28
k = 28/-7
k = -4