anonymous 3 years ago help pls with the following abstract algebra question

1. anonymous

let mapping $\tau _{ab} for a,b \mathbb{R}$,maps the reals into the reals by the rule $\tau _{ab}:x ->ax+b$ Let G={ $\tau _{ab}:a \neq 0$ } Determine whether or not G is an abelian group under the composition of mappings

2. anonymous

@Hero

3. anonymous

@Luis_Rivera