Question

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

Answer 1

Hi,

All answers are good!

Explanation:

I suppose between 2x and the hole is the sign multiply

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

Answer A:

`16x*a=16x+8=16x*(1+(1)/(2x) )\\\\a=1+(1)/(2x)\\`

Answer B:

`16x*a=16x+1=16x*(1+(1)/(16x) )\\\\a=1+(1)/(16x)\\`

Answer C:

`16x*a=16x^2+8x=16x*(x+(1)/(2) )\\\\a=x+(1)/(2)\\`

Answer D:

`16x*a=10x+1=16x*((10)/(16) +(1)/(16x) )\\\\a=(10)/(16) +(1)/(16x) \\`