## anonymous 5 years ago HELP!!! What statement describes this function. f(x) = 2x^3 + 2x^2 -x? is it not a function, many-to-one, or one to one?

1. anonymous

of course it is a function

2. anonymous

since you wrote $f(x)=\text{something}$ it had better be one

3. anonymous

and it is many to one, since is increases, then decreases then increases

4. anonymous

It depends on the domain.

5. anonymous

good point actually. i was assuming that you use the natural domain, $\mathbb R$