Diketahui f (x) = 2x dan g (x) = 3-5x, (fog)1 (4) adalah​

f(x) = 2x

g(x) = 3-5x

(f o g) (x)= 2(3-5x)

(f o g) (x)= 6-10x

(f o g) (4) = 6-10(4)

(f o g) (4) = 6 – 40

(f o g) (4) = -34