Question

Help please how would I solve this and what does the o mean

Answer 1

Hi,

answer A or B if you know what is hidden !

Explanation:

I suppose that what is hidden is +a

`f(x)=8x\\g(x)=2x+a\\\\(fog)(x)=f(g(x))=f(2x+a)=8*(2x+a)=16x+8a\\\\`

Thus not answer C and not answer D

2 solutions:

if a=1 then (fog)(x)=16x+8 : answer A

if a=1/8 then (fog)(x)=16x+1 : answer B