f(x)=ax+b. Jika f (-1)=1 danf(3)=-7. Nilai f(7)=...
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f(x)=ax+b. Jika f (-1)=1 danf(3)=-7. Nilai f(7)=...
1 Jawaban
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1. Jawaban Xro0t
F(x)=ax+b
f(-1)=1 dan f(3) = -7.
Nilai f(7)
-1a + b = 1
3a + b = -7
-------------- -
- 4a = 8
a = - 2
b = - 1
Nilai f(7) = ax + b = - 2(7) - 1 = - 14 -1 = - 15.