Jawab:
Penjelasan dengan langkah-langkah:
f(3x+2)=6x+10
Kita haris cari f(x) dahulu
Misalkan a = 3x+2
3x = a - 2
x = (a - 2) /3
f(a) = 6 ((a - 2)/3) + 10
f(a) = 2 (a - 2) + 10
f(a) = 2a - 4 + 10
f(a) = 2a + 6
f(x) = 2x + 6
f(-5) = (2×-5) + 6 = -10 + 6 = -4
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Jawab:
Penjelasan dengan langkah-langkah:
f(3x+2)=6x+10
Kita haris cari f(x) dahulu
Misalkan a = 3x+2
3x = a - 2
x = (a - 2) /3
f(3x+2)=6x+10
f(a) = 6 ((a - 2)/3) + 10
f(a) = 2 (a - 2) + 10
f(a) = 2a - 4 + 10
f(a) = 2a + 6
f(x) = 2x + 6
f(-5) = (2×-5) + 6 = -10 + 6 = -4