(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Let a=fx+g and b=hx+i. For which real numbers f,g,h,i a∘ b = b∘ a

2. Relevant equations

3. The attempt at a solution

a∘ b(x)=(a(b(x))= h(fx+g)+i= fhx+gh+i

b∘ a(x)=(b(a(x))= f(hx+i)+g= fhx+fi+g

I'm kind of stuck here as I don't think I know what the question is really asking for so I'm unable to proceed :S

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Composition of functions

**Physics Forums | Science Articles, Homework Help, Discussion**