Question

How do you find the domain and range of `f(x)=1/2(x-2)`?

Answer 1

Domain: x `in` `RR`
Range: `f(x)` `in` `RR`

Explanation:

After factoring, this equation becomes `f(x) = 1/2x - 1`.
In this equation there are no values that can result in `f(x)` becoming undefined (like 5/0). So, the domain of x Includes all real numbers.
The graph of `f(x)` is linear. It's a completely straight line so the range of `f(x)` would also include all real numbers.