X 2 or x 1. We can also define special functions whose domains are more limited. X 2 x 1 0.
It is the set of all values for which a function is mathematically defined.
As a function table and as a set of coordinates. The domain of a function can also be determined by identifying the input values of a function written as an equation. Interval values represented on a number line can be described using inequality notation set-builder notation and interval notation. Domain of logx x21x2-1 domain.