f(x)=2x^2-4x+2, g(x)=x-1

Question

i have no idea what to do, i need to find the domain of this

Answer 1

Domain is the set of x values in which a function exists. 

 

Polynomials and linear functions have domains of all real numbers because they are continuous.  Therefore, f(x) and g(x) have domains of all real numbers.

Answer 2

The domain is the set of all x values for which the function has meaning.

 

For both of the functions the domain is all real numbers, ℜ.