F(2x-3)=8x+1.maka f(-4) adalah
Matematika
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Pertanyaan
F(2x-3)=8x+1.maka f(-4) adalah
2 Jawaban
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1. Jawaban Anonyme
f (2x - 3) = 8x + 1
f (2x - 3) = f (-4)
2x - 3 = -4
2x = -4 + 3
2x = -1
x = -1/2
f (4)
= 8 (-1/2) + 1
= -4 + 1
= -3 -
2. Jawaban andhikahanif
mencari f(x)
f(2x - 3) = 8x + 1
f(x) = 8(3 + x / 2) + 1
f(x) = 4(3 + x) + 1
f(x) = 12 + 4x + 1
f(x) = 4x + 13
mencari f(-4)
f(-4) = 4x + 13
f(-4) = 4(-4) +13
f(-4) = -16 + 13
f(-4) = -3