Tolong bantu soal matematika ini

Jawab:

komposisi fungsi

fog(x) = f { g(x) } maka f(x) = (fog)o g⁻¹

Penjelasan dengan langkah-langkah:

…

g(x) =  3x + 2 maka  g⁻¹(x) = 1/3 (x – 2)

f(x) =  (fog) o (g⁻¹)

f(x)= (fog) { 1/3 (x – 2)}

f(x) = -4 – 9 { 1/3 (x – 2)}

..

f(x + 1) = – 4 – 9 { 1/3 ( x+ 1 – 2 )}

f (x + 1) = – 4 – 3 (x – 1)

f(x + 1) = -4 – 3x + 3

f(x + 1) =  - 1 – 3x